{"id":189250,"date":"2024-10-19T11:55:23","date_gmt":"2024-10-19T11:55:23","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/asme-y14-5-2018\/"},"modified":"2024-10-25T04:22:27","modified_gmt":"2024-10-25T04:22:27","slug":"asme-y14-5-2018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/asme\/asme-y14-5-2018\/","title":{"rendered":"ASME Y14.5 2018"},"content":{"rendered":"

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
5<\/td>\nCONTENTS <\/td>\n<\/tr>\n
16<\/td>\nFOREWORD <\/td>\n<\/tr>\n
17<\/td>\nASME Y14 COMMITTEE ROSTER <\/td>\n<\/tr>\n
18<\/td>\nCORRESPONDENCE WITH THE Y14 COMMITTEE <\/td>\n<\/tr>\n
19<\/td>\nSection 1 Scope
1.1 INTRODUCTION
1.2 GENERAL
1.3 REFERENCE TO THIS STANDARD
1.4 ASME Y14 SERIES CONVENTIONS
1.4.1 Mandatory, Recommended, Guidance, and Optional Words
1.4.2 Cross-Reference of Standards
1.4.3 Invocation of Referenced Standards <\/td>\n<\/tr>\n
20<\/td>\n1.4.4 Parentheses Following a Definition
1.4.5 Notes
1.4.6 Acronyms and Abbreviations
1.4.7 Units
1.4.8 Figures
1.4.9 Precedence of Standards
1.4.10 Use of an ASME Y14 Case
1.5 DRAWINGS WITHOUT REFERENCE TO A STANDARD
1.6 REFERENCE TO GAGING <\/td>\n<\/tr>\n
21<\/td>\n1.7 SYMBOLS <\/td>\n<\/tr>\n
22<\/td>\nSection 2 References
2.1 INTRODUCTION
2.2 CITED STANDARDS
2.3 ADDITIONAL SOURCES (NOT CITED) <\/td>\n<\/tr>\n
23<\/td>\nSection 3 Definitions
3.1 ANGULARITY
3.2 BOUNDARY, INNER (IB)
3.3 BOUNDARY, LEAST MATERIAL (LMB)
3.4 BOUNDARY, MAXIMUM MATERIAL (MMB)
3.5 BOUNDARY, OUTER (OB)
3.6 CIRCULARITY (ROUNDNESS)
3.7 COAXIALITY
3.8 COMPLEX FEATURE
3.9 CONSTRAINT
3.10 CONTINUOUS FEATURE
3.11 CONTINUOUS FEATURE OF SIZE
3.12 COPLANARITY
3.13 CYLINDRICITY
3.14 DATUM
3.15 DATUM AXIS <\/td>\n<\/tr>\n
24<\/td>\n3.16 DATUM CENTER PLANE
3.17 DATUM FEATURE
3.18 DATUM FEATURE SIMULATOR
3.19 DATUM REFERENCE FRAME
3.20 DATUM, SIMULATED
3.21 DATUM TARGET
3.22 DERIVED MEDIAN LINE
3.23 DERIVED MEDIAN PLANE
3.24 DIAMETER, AVERAGE
3.25 DIMENSION
3.26 DIMENSION, BASIC
3.27 DIMENSION, DIRECTLY TOLERANCED
3.28 DIMENSION, REFERENCE
3.29 ENVELOPE, ACTUAL MATING (AME)
3.30 ENVELOPE, ACTUAL MINIMUM MATERIAL <\/td>\n<\/tr>\n
25<\/td>\n3.31 FEATURE
3.32 FEATURE AXIS
3.33 FEATURE, CENTER PLANE OF
3.34 FEATURE CONTROL FRAME
3.35 FEATURE OF SIZE
3.36 FEATURE-RELATING TOLERANCE ZONE FRAMEWORK (FRTZF)
3.37 FLATNESS
3.38 FREE STATE
3.39 INTERRUPTION
3.40 LEAST MATERIAL CONDITION (LMC)
3.41 MAXIMUM MATERIAL CONDITION (MMC)
3.42 NONUNIFORM TOLERANCE ZONE
3.43 PARALLELISM <\/td>\n<\/tr>\n
26<\/td>\n3.44 PATTERN
3.45 PATTERN-LOCATING TOLERANCE ZONE FRAMEWORK (PLTZF)
3.46 PERPENDICULARITY
3.47 PLANE, TANGENT
3.48 POSITION
3.49 PROFILE
3.50 REGARDLESS OF FEATURE SIZE (RFS)
3.51 REGARDLESS OF MATERIAL BOUNDARY (RMB)
3.52 REPRESENTED LINE ELEMENT
3.53 RESTRAINED
3.54 RESULTANT CONDITION
3.55 RUNOUT
3.56 SIMULTANEOUS REQUIREMENT
3.57 SIZE, ACTUAL LOCAL
3.58 SIZE, LIMITS OF
3.59 SIZE, NOMINAL <\/td>\n<\/tr>\n
27<\/td>\n3.60 STATISTICAL TOLERANCING
3.61 STRAIGHTNESS
3.62 TOLERANCE
3.63 TOLERANCE, BILATERAL
3.64 TOLERANCE, GEOMETRIC
3.65 TOLERANCE, UNILATERAL
3.66 TRUE GEOMETRIC COUNTERPART
3.67 TRUE POSITION
3.68 TRUE PROFILE
3.69 UNIFORM TOLERANCE ZONE
3.70 VIRTUAL CONDITION (VC) <\/td>\n<\/tr>\n
28<\/td>\nFigures
Figure 3-1 Related and Unrelated AME <\/td>\n<\/tr>\n
29<\/td>\nFigure 3-2 Related and Unrelated Actual Minimum Material Envelope From Figure 3-1 <\/td>\n<\/tr>\n
30<\/td>\nSection 4 Fundamental Rules, Tolerancing Defaults, and Dimensioning Practices
4.1 FUNDAMENTAL RULES <\/td>\n<\/tr>\n
31<\/td>\n4.2 UNITS OF MEASURE
4.2.1 SI (Metric) Linear Units
4.2.2 U.S. Customary Linear Units
4.2.3 Identification of Linear Units
4.2.4 Combination SI (Metric) and U.S. Customary Linear Units
4.2.5 Angular Units
4.3 TYPES OF DIMENSIONING
4.3.1 Millimeter Dimensioning
4.3.2 Decimal Inch Dimensioning
4.3.3 Decimal Points
4.3.4 Default for Conversion and Rounding of Linear Units <\/td>\n<\/tr>\n
32<\/td>\n4.4 APPLICATION OF DIMENSIONS
4.4.1 Dimension Lines
4.4.2 Extension (Projection) Lines
4.4.3 Limited Length or Area Indication <\/td>\n<\/tr>\n
33<\/td>\n4.4.4 Leaders (Leader Lines)
4.4.5 Reading Direction
4.4.6 Reference Dimensions
4.4.7 Overall Dimensions
4.4.8 Dimensioning Within the Outline of a View
4.4.9 Dimensions Not to Scale
4.5 DIMENSIONING FEATURES
4.5.1 Diameters
4.5.2 Radii <\/td>\n<\/tr>\n
34<\/td>\n4.5.3 Chords and Arcs
4.5.4 Rounded Ends and Slotted Holes
4.5.5 Rounded Corners
4.5.6 Outlines Consisting of Arcs
4.5.7 Irregular Outlines
4.5.8 Grid System
4.5.9 Symmetrical Outlines
4.5.10 Round Holes
4.5.11 Counterbored Holes <\/td>\n<\/tr>\n
35<\/td>\n4.5.12 Countersunk and Counterdrilled Holes
4.5.13 Chamfered and Countersunk Holes on Curved Surfaces
4.5.14 Spotfaces
4.5.15 Machining Centers
4.5.16 Chamfers
4.5.17 Keyseats
4.5.18 Knurling
4.5.19 Rod and Tubing Details
4.5.20 Screw Threads
4.5.21 Surface Texture
4.5.22 Involute Splines <\/td>\n<\/tr>\n
36<\/td>\n4.5.23 Castings, Forgings, and Molded Parts
4.6 LOCATION OF FEATURES
4.6.1 Rectangular Coordinate Dimensioning
4.6.2 Rectangular Coordinate Dimensioning Without Dimension Lines
4.6.3 Tabular Dimensioning
4.6.4 Polar Coordinate Dimensioning
4.6.5 Repetitive Features or Dimensions
4.6.6 Use of \u201cX\u201d to Indicate \u201cBy\u201d <\/td>\n<\/tr>\n
37<\/td>\nFigure 4-1 Angular Units
Figure 4-2 Millimeter Dimensions
Figure 4-3 Decimal Inch Dimensions
Figure 4-4 Application of Dimensions
Figure 4-5 Grouping of Dimensions <\/td>\n<\/tr>\n
38<\/td>\nFigure 4-6 Spacing of Dimension Lines
Figure 4-7 Staggered Dimensions
Figure 4-8 Oblique Extension Lines
Figure 4-9 Breaks in Extension Lines
Figure 4-10 Point Locations <\/td>\n<\/tr>\n
39<\/td>\nFigure 4-11 Limited Length or Area Indication
Figure 4-12 Leaders
Figure 4-13 Leader-Directed Dimensions <\/td>\n<\/tr>\n
40<\/td>\nFigure 4-14 Minimizing Leaders
Figure 4-15 Leader Directions
Figure 4-16 Reading Directions
Figure 4-17 Intermediate Reference Dimension
Figure 4-18 Overall Reference Dimension <\/td>\n<\/tr>\n
41<\/td>\nFigure 4-19 Diameters
Figure 4-20 Radii
Figure 4-21 Radius With Located Center
Figure 4-22 Radii With Unlocated Centers <\/td>\n<\/tr>\n
42<\/td>\nFigure 4-23 Foreshortened Radii
Figure 4-24 True Radius
Figure 4-25 Spherical Radius
Figure 4-26 Dimensioning Arcs and Chords <\/td>\n<\/tr>\n
43<\/td>\nFigure 4-27 Slotted Holes
Figure 4-28 Partially Rounded Ends
Figure 4-29 Rounded Corners
Figure 4-30 Circular Arc Outline
Figure 4-31 Coordinate or Offset Outline
Figure 4-32 Tabulated Outline <\/td>\n<\/tr>\n
44<\/td>\nFigure 4-33 Symmetrical Outline
Figure 4-34 Round Holes
Figure 4-35 Counterbored Holes <\/td>\n<\/tr>\n
45<\/td>\nFigure 4-36 Holes With Multiple Counterbores
Figure 4-37 Countersunk and Counterdrilled Holes <\/td>\n<\/tr>\n
46<\/td>\nFigure 4-38 Countersink on a Curved Surface
Figure 4-39 Spotfaced Holes
Figure 4-40 Chamfers
Figure 4-41 45\u00b0 Chamfer <\/td>\n<\/tr>\n
47<\/td>\nFigure 4-42 Internal Chamfers
Figure 4-43 Chamfers Between Surfaces at Other Than 90\u00b0
Figure 4-44 Keyseats
Figure 4-45 Knurls
Figure 4-46 Knurls for Press Fits <\/td>\n<\/tr>\n
48<\/td>\nFigure 4-47 Rectangular Coordinate Dimensioning
Figure 4-48 Rectangular Coordinate Dimensioning Without Dimension Lines <\/td>\n<\/tr>\n
49<\/td>\nFigure 4-49 Rectangular Coordinate Dimensioning in Tabular Form
Figure 4-50 Polar Coordinate Dimensioning
Figure 4-51 Repetitive Features <\/td>\n<\/tr>\n
50<\/td>\nFigure 4-52 Repetitive Features and Dimensions <\/td>\n<\/tr>\n
51<\/td>\nSection 5 Tolerancing, Interpretation of Limits, Limits of Size, and Material Condition Modifiers
5.1 GENERAL
5.1.1 Application
5.2 DIRECT TOLERANCING METHODS
5.2.1 Metric Limits and Fits <\/td>\n<\/tr>\n
52<\/td>\n5.3 TOLERANCE EXPRESSION
5.3.1 Millimeter Tolerances
5.3.2 Inch Tolerances
5.3.3 Angle Tolerances
5.4 INTERPRETATION OF LIMITS <\/td>\n<\/tr>\n
53<\/td>\n5.4.1 Plated or Coated Parts
5.5 SINGLE LIMIT TOLERANCED DIMENSIONS
5.6 TOLERANCE ACCUMULATION BETWEEN SURFACES
5.7 DIMENSIONS RELATED TO AN ORIGIN
5.8 LIMITS OF SIZE
5.8.1 Rule #1: The Envelope Principle (Variations of Form)
5.8.2 Form Control Does Not Apply (Exceptions to Rule #1) <\/td>\n<\/tr>\n
54<\/td>\n5.8.3 Relationship Between Individual Features
5.8.4 Limits of Size and Continuous Features of Size
5.9 APPLICABILITY OF MODIFIERS ON GEOMETRIC TOLERANCE VALUES AND DATUM FEATURE REFERENCES
5.9.1 Rule #2: RFS AND RMB DEFAULT
5.9.2 Surface Method Default for Geometric Tolerances Modified at MMC or LMC
5.9.3 Effect of RFS
5.9.4 Effect of MMC <\/td>\n<\/tr>\n
55<\/td>\n5.9.5 Effect of Zero Tolerance at MMC
5.9.6 Effect of LMC <\/td>\n<\/tr>\n
56<\/td>\n5.9.7 Effect of Zero Tolerance at LMC
5.10 SCREW THREADS
5.11 GEARS AND SPLINES
5.12 BOUNDARY CONDITIONS
5.13 ANGULAR SURFACES
5.14 CONICAL TAPERS <\/td>\n<\/tr>\n
57<\/td>\n5.15 FLAT TAPERS
5.16 RADIUS
5.16.1 Directly Toleranced Radius
5.16.2 Controlled Radius Tolerance
5.17 TANGENT PLANE
5.18 STATISTICAL TOLERANCING <\/td>\n<\/tr>\n
58<\/td>\nFigure 5-1 Limit Dimensioning
Figure 5-2 Plus and Minus Tolerancing
Figure 5-3 Indicating Symbols for Metric Limits and Fits <\/td>\n<\/tr>\n
59<\/td>\nFigure 5-4 Tolerance Accumulation: One Datum Reference Frame <\/td>\n<\/tr>\n
60<\/td>\nFigure 5-5 Tolerance Accumulation: Multiple Datum Reference Frames
Figure 5-6 Relating Dimensional Limits to an Origin <\/td>\n<\/tr>\n
61<\/td>\nFigure 5-7 Extreme Variations of Form Allowed by a Size Tolerance
Figure 5-8 Extreme Variations of Form Allowed by a Geometric Tolerance \u2014 Perfect Form at LMC <\/td>\n<\/tr>\n
62<\/td>\nFigure 5-9 Size Meaning
Figure 5-10 Independency and Flatness Application <\/td>\n<\/tr>\n
63<\/td>\nFigure 5-11 Continuous Feature, External Cylindrical
Figure 5-12 Continuous Feature, Internal Cylindrical <\/td>\n<\/tr>\n
64<\/td>\nFigure 5-13 Continuous Feature, External Width
Figure 5-14 Virtual and Resultant Condition Boundaries Using the MMC Concept \u2014 Internal Feature <\/td>\n<\/tr>\n
65<\/td>\nFigure 5-15 Virtual and Resultant Condition Boundaries Using the LMC Concept \u2014 Internal Feature <\/td>\n<\/tr>\n
66<\/td>\nFigure 5-16 Inner and Outer Boundaries Using the RFS Concept \u2014 Internal Feature <\/td>\n<\/tr>\n
67<\/td>\nFigure 5-17 Virtual and Resultant Condition Boundaries Using the MMC Concept \u2014 External Feature <\/td>\n<\/tr>\n
68<\/td>\nFigure 5-18 Virtual and Resultant Condition Boundaries Using the LMC Concept \u2014 External Feature <\/td>\n<\/tr>\n
69<\/td>\nFigure 5-19 Inner and Outer Condition Boundaries Using the RFS Concept \u2014 External Feature
Figure 5-20 Tolerancing an Angular Surface Using a Combination of Linear and Angular Dimensions <\/td>\n<\/tr>\n
70<\/td>\nFigure 5-21 Specifying Tapers
Figure 5-22 Specifying a Basic Taper and a Basic Diameter
Figure 5-23 Specifying a Flat Taper
Figure 5-24 Specifying a Radius <\/td>\n<\/tr>\n
71<\/td>\nFigure 5-25 Specifying a Controlled Radius
Figure 5-26 Statistical Tolerancing
Figure 5-27 Statistical Tolerancing With Arithmetic Limits
Figure 5-28 Statistical Tolerancing With Geometric Controls <\/td>\n<\/tr>\n
72<\/td>\nSection 6 Symbology
6.1 GENERAL
6.2 USE OF NOTES TO SUPPLEMENT SYMBOLS
6.3 SYMBOL CONSTRUCTION
6.3.1 Geometric Characteristic Symbols
6.3.2 Datum Feature Symbol <\/td>\n<\/tr>\n
73<\/td>\n6.3.3 Symbology for Datum Targets
6.3.4 Basic Dimension Symbol
6.3.5 Material Condition\/Boundary Symbols
6.3.6 Projected Tolerance Zone Symbol
6.3.7 Diameter and Radius Symbols
6.3.8 Reference Symbol <\/td>\n<\/tr>\n
74<\/td>\n6.3.9 Arc Length Symbol
6.3.10 Statistical Tolerancing Symbol
6.3.11 \u201cBetween\u201d Symbol
6.3.12 Counterbore Symbol
6.3.13 Spotface Symbol
6.3.14 Countersink Symbol
6.3.15 Depth Symbol
6.3.16 Square Symbol
6.3.17 Dimension Origin Symbol
6.3.18 Taper and Slope Symbols
6.3.19 \u201cAll Around\u201d Symbol
6.3.20 \u201cFree State\u201d Symbol
6.3.21 Tangent Plane Symbol <\/td>\n<\/tr>\n
75<\/td>\n6.3.22 \u201cUnequally Disposed\u201d Profile Symbol
6.3.23 \u201cContinuous Feature\u201d Symbol
6.3.24 \u201cIndependency\u201d Symbol
6.3.25 \u201cAll Over\u201d Symbol
6.3.26 Datum Translation Symbol
6.3.27 \u201cMovable Datum Target\u201d Symbol
6.3.28 Surface Texture Symbols
6.3.29 Symbols for Limits and Fits
6.3.30 Datum Reference Frame Symbol
6.3.31 Dynamic Profile Tolerance Zone Modifier
6.3.32 \u201cFrom\u2013To\u201d Symbol
6.4 FEATURE CONTROL FRAME SYMBOLS
6.4.1 Feature Control Frame
6.4.2 Feature Control Frame Incorporating One Datum Feature Reference <\/td>\n<\/tr>\n
76<\/td>\n6.4.3 Feature Control Frame Incorporating Two or Three Datum Feature References
6.4.4 Composite Feature Control Frame
6.4.5 Multiple Single-Segment Feature Control Frames
6.4.6 Combined Feature Control Frame and Datum Feature Symbol
6.4.7 Feature Control Frame With a Projected Tolerance Zone
6.5 FEATURE CONTROL FRAME PLACEMENT
6.6 TOLERANCE ZONE SHAPE
6.7 TABULATED TOLERANCES <\/td>\n<\/tr>\n
77<\/td>\nFigure 6-1 Geometric Characteristic Symbols
Figure 6-2 Datum Feature Symbol
Figure 6-3 Datum Feature Symbols on a Feature Surface and an Extension Line <\/td>\n<\/tr>\n
78<\/td>\nFigure 6-4 Placement of Datum Feature Symbols on Features of Size
Figure 6-5 Placement of Datum Feature Symbol in Conjunction With a Feature Control Frame <\/td>\n<\/tr>\n
79<\/td>\nFigure 6-6 Two Datum Features Establishing a Single Datum Plane
Figure 6-7 Datum Target Symbol Examples
Figure 6-8 Datum Target Point <\/td>\n<\/tr>\n
80<\/td>\nFigure 6-9 Datum Target Line
Figure 6-10 Datum Target Area <\/td>\n<\/tr>\n
81<\/td>\nFigure 6-11 Basic Dimension Symbol Application
Figure 6-12 Modifying Symbols
Figure 6-13 Indicating That the Specified Tolerance Is a Statistical Geometric Tolerance
Figure 6-14 Statistical Tolerance Symbol
Figure 6-15 \u201cBetween\u201d Symbol <\/td>\n<\/tr>\n
82<\/td>\nFigure 6-16 Counterbore and Spotface Symbols
Figure 6-17 Countersink Symbol
Figure 6-18 Depth Symbol <\/td>\n<\/tr>\n
83<\/td>\nFigure 6-19 Square Symbol
Figure 6-20 Dimension Origin Symbol
Figure 6-21 Application of \u201cAll Over\u201d and \u201cAll Around\u201d Symbols
Figure 6-22 Feature Control Frame With \u201cFree State\u201d Symbol
Figure 6-23 Application of \u201cMovable Datum Target\u201d Symbol
Figure 6-24 Feature Control Frame
Figure 6-25 Feature Control Frame Incorporating a Datum Feature Reference <\/td>\n<\/tr>\n
84<\/td>\nFigure 6-26 Order of Precedence of Datum Feature Reference
Figure 6-27 Multiple Feature Control Frames
Figure 6-28 Combined Feature Control Frame and Datum Feature Symbol
Figure 6-29 Feature Control Frame With a Projected Tolerance Zone Symbol <\/td>\n<\/tr>\n
85<\/td>\nFigure 6-30 Feature Control Frame Placement <\/td>\n<\/tr>\n
87<\/td>\nFigure 6-31 Tabulated Tolerances <\/td>\n<\/tr>\n
88<\/td>\nSection 7 Datum Reference Frames
7.1 GENERAL
7.2 DEGREES OF FREEDOM
7.3 DEGREES OF FREEDOM CONSTRAINED BY PRIMARY DATUM FEATURES RMB
7.4 CONSTRAINING DEGREES OF FREEDOM OF A PART <\/td>\n<\/tr>\n
89<\/td>\n7.5 TRUE GEOMETRIC COUNTERPART
7.5.1 Types of True Geometric Counterparts
7.5.2 Requirements of True Geometric Counterparts
7.6 TRUE GEOMETRIC COUNTERPARTS AND PHYSICAL DATUM FEATURE SIMULATORS
7.7 DATUM REFERENCE FRAME
7.7.1 Mutually Perpendicular Planes
7.7.2 Number of Datum Reference Frames <\/td>\n<\/tr>\n
90<\/td>\n7.8 DATUM FEATURES
7.8.1 Temporary and Permanent Datum Features
7.8.2 Datum Feature Identification
7.9 DATUM FEATURE CONTROLS
7.10 SPECIFYING DATUM FEATURES IN AN ORDER OF PRECEDENCE
7.10.1 Development of a Datum Reference Frame for Parts With Planar Surface Datum Features <\/td>\n<\/tr>\n
91<\/td>\n7.10.2 Parts With Inclined Datum Features
7.10.3 Parts With Cylindrical Datum Features
7.10.4 Constraining Rotational Degrees of Freedom
7.11 ESTABLISHING DATUMS
7.11.1 Plane Surfaces as Datum Features
7.11.2 Irregularities on Datum Features Applicable RMB
7.11.3 Effect of Specified Material Boundary on Datum Feature References <\/td>\n<\/tr>\n
92<\/td>\n7.11.4 Datum Features Applicable RMB
7.11.5 Specifying Datum Features at MMB
7.11.6 Determining the Size of True Geometric Counterparts at MMB <\/td>\n<\/tr>\n
93<\/td>\n7.11.7 Specifying Datum Features at LMB
7.11.8 Determining the Size of True Geometric Counterparts at LMB <\/td>\n<\/tr>\n
94<\/td>\n7.11.9 Specifying Datum Features RMB
7.11.10 Explicit Specification of True Geometric Counterpart Boundaries
7.11.11 Datum Feature Shift\/Displacement
7.11.12 Translation Modifier <\/td>\n<\/tr>\n
95<\/td>\n7.11.13 Effects of Datum Precedence and Datum Feature Material Boundary Conditions
7.11.14 Cylindrical Feature RMB Primary
7.11.15 Surface Primary, Cylindrical Feature RMB Secondary
7.11.16 Surface Primary, Cylindrical Feature at MMB Secondary
7.11.17 Cylindrical Feature at MMB Primary
7.12 COMMON DATUM FEATURES
7.12.1 Simulation of a Single Datum Plane
7.12.2 Single Axis of Two Coaxial Features of Size <\/td>\n<\/tr>\n
96<\/td>\n7.12.3 Pattern of Features of Size at MMB
7.12.4 Pattern of Features of Size RMB
7.12.5 Partial Surfaces as Datum Features
7.13 MATHEMATICALLY DEFINED SURFACE
7.14 MULTIPLE DATUM REFERENCE FRAMES
7.15 FUNCTIONAL DATUM FEATURES
7.16 ROTATIONAL CONSTRAINT ABOUT A DATUM AXIS OR POINT <\/td>\n<\/tr>\n
97<\/td>\n7.16.1 Contoured Datum Feature RMB Constraining a Rotational Degree of Freedom
7.16.2 Contoured Datum Feature at MMB Constraining a Rotational Degree of Freedom
7.16.3 Planar Datum Feature RMB Constraining a Rotational Degree of Freedom
7.16.4 Planar Datum Feature at MMB Constraining a Rotational Degree of Freedom
7.16.5 Offset Planar Datum Feature RMB Constraining a Rotational Degree of Freedom
7.16.6 Offset Planar Datum Feature Set at Basic, Constraining a Rotational Degree of Freedom
7.16.7 Offset Planar Datum Feature at MMB Constraining a Rotational Degree of Freedom <\/td>\n<\/tr>\n
98<\/td>\n7.16.8 Offset Planar Datum Features at LMB Constraining a Rotational Degree of Freedom
7.16.9 Datum Feature of Size RMB Constraining a Rotational Degree of Freedom
7.16.10 Datum Feature of Size RMB With Translation Modifier Constraining Rotational Degrees of Freedom
7.17 APPLICATION OF MMB, LMB, AND RMB TO IRREGULAR FEATURES OF SIZE
7.18 DATUM FEATURE SELECTION PRACTICAL APPLICATION
7.19 SIMULTANEOUS REQUIREMENTS <\/td>\n<\/tr>\n
99<\/td>\n7.20 RESTRAINED CONDITION
7.20.1 Specification of Restraint Magnitude
7.20.2 Location, Direction, Sequence, and Area of Restraint
7.20.3 Gravity
7.20.4 Application of \u201cFree State\u201d Symbol <\/td>\n<\/tr>\n
100<\/td>\n7.21 DATUM REFERENCE FRAME IDENTIFICATION
7.22 CUSTOMIZED DATUM REFERENCE FRAME CONSTRUCTION
7.23 APPLICATION OF A CUSTOMIZED DATUM REFERENCE FRAME <\/td>\n<\/tr>\n
101<\/td>\n7.24 DATUM TARGETS
7.24.1 Establishing a Center Plane From Datum Targets
7.24.2 \u201cMovable Datum Target\u201d Symbol
7.24.3 Datum Target Dimensions
7.24.4 Datum Planes Established by Datum Targets <\/td>\n<\/tr>\n
102<\/td>\n7.24.5 Stepped Surfaces
7.24.6 Primary Datum Axis
7.24.7 Circular and Cylindrical Targets
7.24.8 Secondary Datum Axis
7.24.9 Datums Established From Complex or Irregular Surfaces
7.24.10 Datum Features Established From Datum Targets With Fewer Than Three Mutually Perpendicular Planes <\/td>\n<\/tr>\n
103<\/td>\nFigure 7-1 Datum Reference Frame <\/td>\n<\/tr>\n
104<\/td>\nFigure 7-2 Sequence of Datum Features Relates Part to Datum Reference Frame <\/td>\n<\/tr>\n
105<\/td>\nFigure 7-3 Constrained Degrees of Freedom for Primary Datum Features <\/td>\n<\/tr>\n
106<\/td>\nFigure 7-4 Part Where Rotational Constraint Is Important <\/td>\n<\/tr>\n
107<\/td>\nFigure 7-5 Development of a Datum Reference Frame for the Part in Figure 7-4 <\/td>\n<\/tr>\n
108<\/td>\nFigure 7-6 Development of a Datum Reference Frame <\/td>\n<\/tr>\n
110<\/td>\nFigure 7-7 Datum Plane Establishment
Figure 7-8 Establishment of Datums for Primary External Cylindrical Datum Feature RMB <\/td>\n<\/tr>\n
111<\/td>\nFigure 7-9 Establishment of Datums for Primary Internal Cylindrical Datum Feature RMB <\/td>\n<\/tr>\n
112<\/td>\nFigure 7-10 Establishment of Datums for Primary External Datum Width Feature RMB <\/td>\n<\/tr>\n
113<\/td>\nFigure 7-11 Establishment of Datums for Primary Internal Datum Width Feature RMB <\/td>\n<\/tr>\n
114<\/td>\nFigure 7-12 Development of a Datum Reference Frame With Translation Modifier <\/td>\n<\/tr>\n
116<\/td>\nFigure 7-13 Inclined Datum Feature <\/td>\n<\/tr>\n
117<\/td>\nFigure 7-14 Part With Cylindrical Datum Feature <\/td>\n<\/tr>\n
118<\/td>\nFigure 7-15 Multiple Datum Reference Frames and Their Interrelationships <\/td>\n<\/tr>\n
119<\/td>\nFigure 7-16 Two Coaxial Datum Features, Single Datum Axis <\/td>\n<\/tr>\n
120<\/td>\nFigure 7-17 Two Datum Features RMB, Single Datum Axis <\/td>\n<\/tr>\n
121<\/td>\nFigure 7-18 Hole Pattern Identified as Datum Feature <\/td>\n<\/tr>\n
122<\/td>\nFigure 7-19 Effect of Secondary Datum Feature Reference Applicable RMB and at MMB <\/td>\n<\/tr>\n
123<\/td>\nFigure 7-20 Effect of Primary Datum Feature Reference Applicable RMB and at MMB <\/td>\n<\/tr>\n
124<\/td>\nFigure 7-21 Secondary and Tertiary Datum Features RMB <\/td>\n<\/tr>\n
125<\/td>\nFigure 7-22 Example Calculations of MMB <\/td>\n<\/tr>\n
126<\/td>\nFigure 7-23 Example Calculations of LMB <\/td>\n<\/tr>\n
127<\/td>\nFigure 7-24 Example Calculations of Maximum External Boundary for RMB Applications <\/td>\n<\/tr>\n
128<\/td>\nFigure 7-25 Secondary and Tertiary Datum Features at LMB <\/td>\n<\/tr>\n
129<\/td>\nFigure 7-26 Secondary and Tertiary Datum Features at MMB <\/td>\n<\/tr>\n
130<\/td>\nFigure 7-27 Planar Common Datum Features <\/td>\n<\/tr>\n
131<\/td>\nFigure 7-28 Partial Surface as a Datum Feature <\/td>\n<\/tr>\n
132<\/td>\nFigure 7-29 Contoured Surface as a Datum Feature <\/td>\n<\/tr>\n
133<\/td>\nFigure 7-30 Contoured Datum Feature Constraining a Rotational Degree of Freedom: Secondary Datum Feature RMB
Figure 7-31 Contoured Datum Feature Constraining a Rotational Degree of Freedom: Secondary Datum Feature at MMB <\/td>\n<\/tr>\n
134<\/td>\nFigure 7-32 Planar Datum Feature Constraining a Rotational Degree of Freedom: Secondary Datum Feature RMB
Figure 7-33 Planar Datum Feature Constraining a Rotational Degree of Freedom: Secondary Datum Feature at MMB <\/td>\n<\/tr>\n
135<\/td>\nFigure 7-34 Planar Datum Feature Constraining a Rotational Degree of Freedom: Secondary Datum Feature RMB
Figure 7-35 Planar Datum Feature Constraining a Rotational Degree of Freedom: Secondary Datum Feature at BSC <\/td>\n<\/tr>\n
136<\/td>\nFigure 7-36 Planar Datum Feature Constraining a Rotational Degree of Freedom: Secondary Datum Feature at MMB
Figure 7-37 Planar Datum Feature Constraining a Rotational Degree of Freedom: Secondary Datum Feature at LMB <\/td>\n<\/tr>\n
137<\/td>\nFigure 7-38 Size Datum Feature Constraining a Rotational Degree of Freedom: Secondary Datum Feature RMB
Figure 7-39 Size Datum Feature Constraining a Rotational Degree of Freedom: Secondary Datum Feature RMB, Translate <\/td>\n<\/tr>\n
138<\/td>\nFigure 7-40 Irregular and Regular Features of Size as Datum Features <\/td>\n<\/tr>\n
140<\/td>\nFigure 7-41 Coaxial Irregular Datum Feature of Size <\/td>\n<\/tr>\n
142<\/td>\nFigure 7-42 Possible Datum Feature and True Geometric Counterparts From Three Pins Used as an Irregular Feature of Size <\/td>\n<\/tr>\n
143<\/td>\nFigure 7-43 Mating Parts for Functional Datum Section <\/td>\n<\/tr>\n
144<\/td>\nFigure 7-44 Functional Datum Application: Pulley <\/td>\n<\/tr>\n
145<\/td>\nFigure 7-45 Functional Datum Application: Adapter <\/td>\n<\/tr>\n
146<\/td>\nFigure 7-46 Simultaneous Position and Profile Tolerances <\/td>\n<\/tr>\n
147<\/td>\nFigure 7-47 Part With Nominally Aligned Features: Simultaneous Requirement <\/td>\n<\/tr>\n
148<\/td>\nFigure 7-48 Part With Nominally Aligned Features: Separate Requirements <\/td>\n<\/tr>\n
149<\/td>\nFigure 7-49 Restrained Condition Application <\/td>\n<\/tr>\n
150<\/td>\nFigure 7-50 Indication of Unrestrained Datum Targets for a Primary Multiple Datum Feature Reference <\/td>\n<\/tr>\n
151<\/td>\nFigure 7-51 Indication of Unrestrained Datum Targets for a Secondary Datum Feature Reference <\/td>\n<\/tr>\n
152<\/td>\nFigure 7-52 Planar Combined Datum Features <\/td>\n<\/tr>\n
153<\/td>\nFigure 7-53 Datum Targets Used to Establish Datum Reference Frame for Complex Part <\/td>\n<\/tr>\n
154<\/td>\nFigure 7-54 Datum Reference Frame Identification <\/td>\n<\/tr>\n
155<\/td>\nFigure 7-55 Conical Datum Feature Referenced to Constrain Five Degrees of Freedom <\/td>\n<\/tr>\n
156<\/td>\nFigure 7-56 Conical Datum Feature Reference Customized to Constrain Four Degrees of Freedom <\/td>\n<\/tr>\n
157<\/td>\nFigure 7-57 Customized Datum Reference Frame <\/td>\n<\/tr>\n
158<\/td>\nFigure 7-58 Application of Movable Datum Targets <\/td>\n<\/tr>\n
160<\/td>\nFigure 7-59 Datum Target Spheres <\/td>\n<\/tr>\n
161<\/td>\nFigure 7-60 Application of Datum Targets to Establish a Datum Reference Frame <\/td>\n<\/tr>\n
162<\/td>\nFigure 7-61 Primary Datum Axis Established by Datum Target Points on a Single Cylindrical Feature <\/td>\n<\/tr>\n
163<\/td>\nFigure 7-62 Primary and Secondary Datums Established by Datum Target Lines on Two Cylindrical Features and a Surface <\/td>\n<\/tr>\n
164<\/td>\nFigure 7-63 Datum Target Line and Area <\/td>\n<\/tr>\n
165<\/td>\nFigure 7-64 Secondary Datum Axis <\/td>\n<\/tr>\n
166<\/td>\nSection 8 Tolerances of Form
8.1 GENERAL
8.2 FORM CONTROL
8.3 SPECIFYING FORM TOLERANCES
8.4 FORM TOLERANCES
8.4.1 Straightness <\/td>\n<\/tr>\n
167<\/td>\n8.4.2 Flatness
8.4.3 Circularity (Roundness)
8.4.4 Cylindricity <\/td>\n<\/tr>\n
168<\/td>\n8.5 AVERAGE DIAMETER <\/td>\n<\/tr>\n
169<\/td>\nFigure 8-1 Specifying Straightness of a Flat Surface <\/td>\n<\/tr>\n
170<\/td>\nFigure 8-2 Specifying Straightness of Surface Elements <\/td>\n<\/tr>\n
171<\/td>\nFigure 8-3 Specifying Straightness RFS <\/td>\n<\/tr>\n
172<\/td>\nFigure 8-4 Specifying Straightness at MMC <\/td>\n<\/tr>\n
173<\/td>\nFigure 8-5 Specifying Straightness per Unit Length With Specified Total Straightness, Both RFS <\/td>\n<\/tr>\n
174<\/td>\nFigure 8-6 Possible Results of Specifying Straightness per Unit Length RFS, With No Specified Total
Figure 8-7 Specifying Flatness of a Surface <\/td>\n<\/tr>\n
175<\/td>\nFigure 8-8 Specifying Flatness of a Derived Median Plane RFS <\/td>\n<\/tr>\n
176<\/td>\nFigure 8-9 Specifying Flatness of a Derived Median Plane at MMC <\/td>\n<\/tr>\n
177<\/td>\nFigure 8-10 Specifying Circularity for a Cylinder or Cone <\/td>\n<\/tr>\n
178<\/td>\nFigure 8-11 Specifying Circularity of a Sphere
Figure 8-12 Specifying Cylindricity <\/td>\n<\/tr>\n
179<\/td>\nFigure 8-13 Specifying Circularity With Average Diameter <\/td>\n<\/tr>\n
180<\/td>\nFigure 8-14 Specifying Restraint for Nonrigid Parts <\/td>\n<\/tr>\n
181<\/td>\nSection 9 Tolerances of Orientation
9.1 GENERAL
9.2 ORIENTATION CONTROL
9.3 SPECIFYING ORIENTATION TOLERANCES
9.3.1 Orientation Tolerance Zone
9.3.2 Orientation Tolerance
9.3.3 Application of Each Element\u2019s Tolerance Zones
9.3.4 Application of Zero Tolerance at MMC <\/td>\n<\/tr>\n
182<\/td>\n9.3.5 Explanation of Orientation Tolerance at MMC
9.4 TANGENT PLANE
9.5 ALTERNATIVE PRACTICE <\/td>\n<\/tr>\n
183<\/td>\nFigure 9-1 Specifying Angularity for a Plane Surface
Figure 9-2 Specifying Parallelism for a Plane Surface <\/td>\n<\/tr>\n
184<\/td>\nFigure 9-3 Specifying Perpendicularity for a Plane Surface
Figure 9-4 Specifying Orientation for a Plane Surface Relative to Two Datums <\/td>\n<\/tr>\n
185<\/td>\nFigure 9-5 Specifying Perpendicularity for a Center Plane (Feature RFS)
Figure 9-6 Specifying Angularity for an Axis (Feature RFS) <\/td>\n<\/tr>\n
186<\/td>\nFigure 9-7 Specifying Parallelism for an Axis (Feature RFS) <\/td>\n<\/tr>\n
187<\/td>\nFigure 9-8 Specifying Angularity for an Axis With Two Datum Feature References (Feature RFS) <\/td>\n<\/tr>\n
188<\/td>\nFigure 9-9 Specifying Parallelism for an Axis (Both Feature and Datum Feature RFS) <\/td>\n<\/tr>\n
189<\/td>\nFigure 9-10 Specifying Parallelism for an Axis (Feature at MMC and Datum Feature RFS) <\/td>\n<\/tr>\n
190<\/td>\nFigure 9-11 Specifying Perpendicularity for an Axis at a Projected Height (Threaded Hole or Insert at MMC) <\/td>\n<\/tr>\n
191<\/td>\nFigure 9-12 Specifying Perpendicularity for an Axis (Pin or Boss RFS) <\/td>\n<\/tr>\n
192<\/td>\nFigure 9-13 Specifying Perpendicularity for an Axis Showing Acceptance Boundary (Pin or Boss at MMC) <\/td>\n<\/tr>\n
193<\/td>\nFigure 9-14 Specifying Perpendicularity for an Axis (Zero Tolerance at MMC) <\/td>\n<\/tr>\n
194<\/td>\nFigure 9-15 Specifying Perpendicularity for an Axis (Zero Tolerance at MMC With a Maximum Specified) <\/td>\n<\/tr>\n
195<\/td>\nFigure 9-16 Specifying Orientation for a Curved Surface Relative to a Planar Datum Feature <\/td>\n<\/tr>\n
196<\/td>\nFigure 9-17 Specifying Parallelism With a Tangent Plane and Profile of a Surface
Figure 9-18 Specifying Parallelism With a Tangent Plane <\/td>\n<\/tr>\n
197<\/td>\nSection 10 Tolerances of Position
10.1 GENERAL
10.2 POSITIONAL TOLERANCING
10.2.1 Components of Positional Tolerancing
10.3 POSITIONAL TOLERANCING FUNDAMENTALS \u2014 I
10.3.1 Material Condition Basis
10.3.2 RFS as Related to Positional Tolerancing
10.3.3 MMC as Related to Positional Tolerancing <\/td>\n<\/tr>\n
198<\/td>\n10.3.4 Zero Positional Tolerance at MMC
10.3.5 LMC as Related to Positional Tolerancing <\/td>\n<\/tr>\n
199<\/td>\n10.3.6 Datum Feature Modifiers in Positional Tolerances <\/td>\n<\/tr>\n
200<\/td>\n10.4 POSITIONAL TOLERANCING FUNDAMENTALS \u2014 II
10.4.1 Projected Tolerance Zone
10.4.2 Coaxial Features
10.4.3 Closer Control at One End of a Feature of Size <\/td>\n<\/tr>\n
201<\/td>\n10.4.4 Bidirectional Positional Tolerancing of Features of Size
10.4.5 Noncircular Features of Size
10.4.6 Spherical Features <\/td>\n<\/tr>\n
202<\/td>\n10.4.7 Nonparallel Axis Hole Patterns
10.4.8 Repetitive Pattern of Features of Size Related to a Repeated Datum Reference Frame
10.5 PATTERN LOCATION
10.5.1 Composite Positional Tolerancing <\/td>\n<\/tr>\n
203<\/td>\n10.5.2 Multiple Single-Segment Positional Tolerancing <\/td>\n<\/tr>\n
204<\/td>\n10.5.3 Coaxial Positional Tolerances <\/td>\n<\/tr>\n
205<\/td>\n10.5.4 Simultaneous Requirements
10.5.5 Multiple Positional Tolerances for a Pattern of Features of Size
10.6 COAXIAL FEATURE CONTROLS
10.6.1 Selection of Coaxial Feature Controls
10.6.2 Positional Tolerance Control <\/td>\n<\/tr>\n
206<\/td>\n10.6.3 Runout Tolerance Control
10.6.4 Controlling Features With Positional Tolerances
10.6.5 Profile of a Surface Tolerance Control
10.7 TOLERANCING FOR SYMMETRICAL RELATIONSHIPS
10.7.1 Positional Tolerancing at MMC <\/td>\n<\/tr>\n
207<\/td>\nFigure 10-1 Identifying Basic Dimensions <\/td>\n<\/tr>\n
208<\/td>\nFigure 10-2 Positional Tolerancing With Datum References <\/td>\n<\/tr>\n
209<\/td>\nFigure 10-3 Positional Tolerancing Relative to Planar Datum Feature Surfaces <\/td>\n<\/tr>\n
210<\/td>\nFigure 10-4 Positional Tolerancing at MMC Relative to Datum Feature Center Planes
Figure 10-5 RFS Applicable to a Feature Tolerance and RMB Applied to a Datum Feature Reference <\/td>\n<\/tr>\n
211<\/td>\nFigure 10-6 Possible Axis Interpretation Error
Figure 10-7 Boundary for Surface of a Hole at MMC <\/td>\n<\/tr>\n
212<\/td>\nFigure 10-8 Surface Interpretation for Position Tolerance at MMC
Figure 10-9 Axis Interpretation for Position Tolerance at MMC <\/td>\n<\/tr>\n
213<\/td>\nFigure 10-10 Increase in Positional Tolerance Where Hole Is Not at MMC
Figure 10-11 Positional Tolerancing at MMC <\/td>\n<\/tr>\n
214<\/td>\nFigure 10-12 Zero Positional Tolerancing at MMC
Figure 10-13 Increase in Positional Tolerance Where Hole Is Not at LMC <\/td>\n<\/tr>\n
215<\/td>\nFigure 10-14 LMC Applied to Boss and Hole <\/td>\n<\/tr>\n
216<\/td>\nFigure 10-15 Zero Tolerance at LMC Applied to Boss and Hole <\/td>\n<\/tr>\n
217<\/td>\nFigure 10-16 LMC Applied to a Single Feature <\/td>\n<\/tr>\n
218<\/td>\nFigure 10-17 LMC Applied to Pattern of Slots
Figure 10-18 Datum Feature at LMB <\/td>\n<\/tr>\n
219<\/td>\nFigure 10-19 Datum Feature Referenced at MMB <\/td>\n<\/tr>\n
220<\/td>\nFigure 10-20 Interference Diagram, Fastener and Hole
Figure 10-21 Basis for Projected Tolerance Zone
Figure 10-22 Projected Tolerance Zone Specified <\/td>\n<\/tr>\n
221<\/td>\nFigure 10-23 Projected Tolerance Zone Indicated With Chain Line
Figure 10-24 Projected Tolerance Zone Applied for Studs or Dowel Pins
Figure 10-25 Same Positional Tolerance for Holes and Counterbores, Same Datum References <\/td>\n<\/tr>\n
222<\/td>\nFigure 10-26 Different Positional Tolerances for Holes and Counterbores, Same Datum References
Figure 10-27 Positional Tolerances for Holes and Counterbores, Different Datum References <\/td>\n<\/tr>\n
223<\/td>\nFigure 10-28 Different Positional Tolerance at Each End of a Long Hole
Figure 10-29 Bidirectional Positional Tolerancing, Rectangular Coordinate Method <\/td>\n<\/tr>\n
224<\/td>\nFigure 10-30 Bidirectional Positional Tolerancing, Polar Coordinate Method
Figure 10-31 Positional Tolerancing of Tabs <\/td>\n<\/tr>\n
225<\/td>\nFigure 10-32 Positional Tolerancing of Slots
Figure 10-33 Virtual Condition for Surfaces of Slot at MMC
Figure 10-34 Tolerance Zone for Center Plane of Slot at MMC <\/td>\n<\/tr>\n
226<\/td>\nFigure 10-35 Positional Tolerancing, Boundary Concept <\/td>\n<\/tr>\n
228<\/td>\nFigure 10-36 Spherical Feature Located by Positional Tolerancing <\/td>\n<\/tr>\n
229<\/td>\nFigure 10-37 Nonparallel Holes Including Those Not Normal to the Surface <\/td>\n<\/tr>\n
230<\/td>\nFigure 10-38 Multiple Patterns of Features <\/td>\n<\/tr>\n
232<\/td>\nFigure 10-39 Hole Patterns Located by Composite Positional Tolerancing <\/td>\n<\/tr>\n
236<\/td>\nFigure 10-40 Hole Patterns of Figure 10-38 With Secondary Datums in Feature-Relating Segments of Composite Feature Control Frames <\/td>\n<\/tr>\n
237<\/td>\nFigure 10-41 Composite Positional Tolerancing of a Circular Pattern of Features <\/td>\n<\/tr>\n
238<\/td>\nFigure 10-42 Radial Hole Pattern Located by Composite Positional Tolerancing \u2014 Repeated Primary Datum Reference <\/td>\n<\/tr>\n
240<\/td>\nFigure 10-43 Radial Hole Pattern Located by Composite Positional Tolerancing \u2014 Repeated All Datum References <\/td>\n<\/tr>\n
241<\/td>\nFigure 10-44 Orientation Relative to Three Datum Planes <\/td>\n<\/tr>\n
242<\/td>\nFigure 10-45 Positional Tolerancing for Coaxial Holes of Same Size, Partial (Parallelism) Refinement of Feature-Relating Axis Relative to Datums A and B With Further Refinement of Parallelism to Datum A <\/td>\n<\/tr>\n
244<\/td>\nFigure 10-46 Three-Segment Composite Tolerance <\/td>\n<\/tr>\n
245<\/td>\nFigure 10-47 Multiple Single-Segment Feature Control Frames With Secondary Datum in Lower Feature Control Frame <\/td>\n<\/tr>\n
247<\/td>\nFigure 10-48 Positional Tolerancing With Multiple Single-Segment Feature Control Frames <\/td>\n<\/tr>\n
248<\/td>\nFigure 10-49 Radial Hole Pattern Located by Multiple Single-Segment Feature Control Frames <\/td>\n<\/tr>\n
249<\/td>\nFigure 10-50 Positional Tolerancing for Coaxial Holes of Same Size <\/td>\n<\/tr>\n
250<\/td>\nFigure 10-51 Positional Tolerancing for Coaxial Holes of Same Size, Partial (Parallelism) Refinement of Feature of Feature-Relating Axis
Figure 10-52 Positional Tolerancing for Multiple Features of More Than One Size <\/td>\n<\/tr>\n
251<\/td>\nFigure 10-53 Multiple Patterns of Features, Simultaneous Requirement <\/td>\n<\/tr>\n
253<\/td>\nFigure 10-54 Multiple Patterns of Features, Separate Requirements <\/td>\n<\/tr>\n
254<\/td>\nFigure 10-55 Multiple Positional Tolerancing for a Pattern of Features <\/td>\n<\/tr>\n
255<\/td>\nFigure 10-56 Positional Tolerancing for Coaxiality <\/td>\n<\/tr>\n
256<\/td>\nFigure 10-57 Feature Controlled With Positional Tolerance RFS and Datum Referenced RMB for Coaxiality
Figure 10-58 Two Datum Features, Single Datum Axis <\/td>\n<\/tr>\n
257<\/td>\nFigure 10-59 Positional Tolerancing at MMC for Symmetrical Features
Figure 10-60 Positional Tolerancing RFS for Symmetrical Features <\/td>\n<\/tr>\n
258<\/td>\nSection 11 Tolerances of Profile
11.1 GENERAL
11.2 PROFILE
11.2.1 Types of Profile Tolerances
11.2.2 Profile Specification
11.2.3 Profile Tolerances as General Requirements
11.3 TOLERANCE ZONE BOUNDARIES
11.3.1 Uniform Tolerance Zone <\/td>\n<\/tr>\n
259<\/td>\n11.3.2 Nonuniform Tolerance Zone
11.4 PROFILE APPLICATIONS
11.4.1 Profile Tolerance for Plane Surfaces <\/td>\n<\/tr>\n
260<\/td>\n11.4.2 Conical Surfaces
11.4.3 Profile on Nonsize Datum Features
11.4.4 Application on Continuous Features
11.5 MATERIAL CONDITION AND BOUNDARY CONDITION MODIFIERS AS RELATED TO PROFILE CONTROLS
11.6 COMPOSITE PROFILE
11.6.1 Composite Profile Tolerancing for a Single Feature <\/td>\n<\/tr>\n
261<\/td>\n11.6.2 Composite Profile With Independent Size\/Form Control <\/td>\n<\/tr>\n
262<\/td>\n11.7 MULTIPLE SINGLE-SEGMENT PROFILE TOLERANCING
11.8 COMBINED CONTROLS
11.9 PROFILE OF A LINE AS A REFINEMENT
11.10 DYNAMIC PROFILE TOLERANCE MODIFIER
11.10.1 Dynamic Profile Tolerance Controlling Form <\/td>\n<\/tr>\n
263<\/td>\n11.10.2 Dynamic Profile Tolerance Controlling Form and Orientation
11.10.3 Dynamic Profile Tolerance Applied to the Lower Segment of Multiple Single-Segment Feature Control Frames
11.10.4 Dynamic Profile Tolerance Applied to a Surface of Revolution <\/td>\n<\/tr>\n
264<\/td>\nFigure 11-1 Profile of a Surface Application (Bilateral) <\/td>\n<\/tr>\n
265<\/td>\nFigure 11-2 Profile of a Surface Application (Unilaterally Inside) <\/td>\n<\/tr>\n
266<\/td>\nFigure 11-3 Profile of a Surface Application (Unilaterally Outside) <\/td>\n<\/tr>\n
267<\/td>\nFigure 11-4 Profile of a Surface Application (Unequally Disposed) <\/td>\n<\/tr>\n
268<\/td>\nFigure 11-5 Specifying the Profile of a Surface for Sharp Corners <\/td>\n<\/tr>\n
269<\/td>\nFigure 11-6 Specifying Profile of a Surface All Around <\/td>\n<\/tr>\n
270<\/td>\nFigure 11-7 Application of Profile of a Surface Tolerance to a Basic Contour <\/td>\n<\/tr>\n
271<\/td>\nFigure 11-8 Specifying Different Profile Tolerances on Segments of a Profile <\/td>\n<\/tr>\n
272<\/td>\nFigure 11-9 Specifying Profile of a Surface Between Points <\/td>\n<\/tr>\n
273<\/td>\nFigure 11-10 Specifying Profile of a Surface All Over
Figure 11-11 Nonuniform Profile Tolerance Zone <\/td>\n<\/tr>\n
274<\/td>\nFigure 11-12 Nonuniform Profile Tolerance Zone With Multiple Segments <\/td>\n<\/tr>\n
275<\/td>\nFigure 11-13 Nonuniform Profile Tolerance Zone With Zones to Smooth Transitions <\/td>\n<\/tr>\n
276<\/td>\nFigure 11-14 Nonuniform Profile Tolerance Zone Alternative Practice <\/td>\n<\/tr>\n
277<\/td>\nFigure 11-15 Specifying the Profile of a Surface for a Plane Surface <\/td>\n<\/tr>\n
278<\/td>\nFigure 11-16 Specifying the Profile of a Surface for Coplanar Surfaces <\/td>\n<\/tr>\n
279<\/td>\nFigure 11-17 Specifying the Profile of a Surface for Coplanar Surfaces to a Datum Established by Two Surfaces <\/td>\n<\/tr>\n
280<\/td>\nFigure 11-18 Specifying the Profile of a Surface for Stepped Surfaces
Figure 11-19 Specifying the Profile of a Conical Feature <\/td>\n<\/tr>\n
281<\/td>\nFigure 11-20 Profile Tolerancing of a Conical Feature, Datum Related <\/td>\n<\/tr>\n
282<\/td>\nFigure 11-21 The Toleranced Feature Is a Referenced Datum Feature <\/td>\n<\/tr>\n
283<\/td>\nFigure 11-22 The Toleranced Feature Includes Referenced Datum Targets <\/td>\n<\/tr>\n
284<\/td>\nFigure 11-23 \u201cContinuous Feature\u201d Symbol Application in a Profile Tolerance <\/td>\n<\/tr>\n
285<\/td>\nFigure 11-24 Composite Profile Tolerancing of an Irregular Feature <\/td>\n<\/tr>\n
286<\/td>\nFigure 11-25 Composite Profile Tolerancing of a Feature <\/td>\n<\/tr>\n
287<\/td>\nFigure 11-26 Pattern Located by Composite Profile Tolerancing \u2014 Repeated Primary Datum Feature Reference <\/td>\n<\/tr>\n
290<\/td>\nFigure 11-27 Pattern Located by Composite Profile Tolerancing \u2014 Repeated Primary and Secondary Datum Feature References <\/td>\n<\/tr>\n
293<\/td>\nFigure 11-28 Irregular Shaped Feature With a Profile Size\/Form Control and the Pattern Located by Composite Profile Tolerance <\/td>\n<\/tr>\n
294<\/td>\nFigure 11-29 MMC Principle Used With Profile Controls <\/td>\n<\/tr>\n
295<\/td>\nFigure 11-30 Profile of a Surface of Revolution <\/td>\n<\/tr>\n
296<\/td>\nFigure 11-31 Specifying the Combined Profile of a Surface and a Line Tolerance <\/td>\n<\/tr>\n
298<\/td>\nFigure 11-32 Profile of a Line and Size Control <\/td>\n<\/tr>\n
299<\/td>\nFigure 11-33 Specifying Perpendicularity for a Radial Element of a Surface <\/td>\n<\/tr>\n
300<\/td>\nFigure 11-34 Constrained Degree of Freedom Used With Profile of a Line <\/td>\n<\/tr>\n
301<\/td>\nFigure 11-35 Composite Profile With Dynamic Profile to Control Form <\/td>\n<\/tr>\n
302<\/td>\nFigure 11-36 Composite Profile With Dynamic Profile to Control Form and Constrain Rotational Degrees of Freedom <\/td>\n<\/tr>\n
303<\/td>\nFigure 11-37 Use of Dynamic Profile in a Two-Single-Segment Profile Tolerance <\/td>\n<\/tr>\n
304<\/td>\nFigure 11-38 Dynamic Profile of a Surface of Revolution <\/td>\n<\/tr>\n
305<\/td>\nSection 12 Tolerances of Runout
12.1 GENERAL
12.2 RUNOUT
12.3 RUNOUT TOLERANCE
12.3.1 Datum Features for Runout Tolerances
12.3.2 Degrees of Freedom Constrained
12.4 TYPES OF RUNOUT TOLERANCES
12.4.1 Control of Circular Elements <\/td>\n<\/tr>\n
306<\/td>\n12.4.2 Total Runout for Control of Surfaces
12.4.3 Runout Applied to a Portion of a Surface
12.5 RUNOUT TOLERANCE AND SIZE
12.5.1 Small Circular Runout Tolerance and Large Size Tolerance
12.5.2 Small Total Runout Tolerance and Large Size Tolerance
12.5.3 Large Runout Tolerance and Small Size Tolerance
12.6 APPLICATION
12.6.1 Control of Diameters to Datum Axis <\/td>\n<\/tr>\n
307<\/td>\n12.6.2 Common Cylindrical Datum Features
12.6.3 Cylindrical and Planar Datum Features
12.6.4 Control of Individual Datum Feature Surfaces
12.6.5 Control of Runout to a Datum Feature(s)
12.6.6 Relationship of Features Based on Referenced Datums
12.6.7 Runout Tolerance Applied to a Tangent Plane
12.6.8 Runout Tolerance Application on an Assembly
12.7 SPECIFICATION <\/td>\n<\/tr>\n
308<\/td>\nFigure 12-1 Features Applicable to Runout Tolerancing <\/td>\n<\/tr>\n
309<\/td>\nFigure 12-2 Specifying Circular Runout \u2014 Small Size Tolerance and Large Runout Tolerance <\/td>\n<\/tr>\n
310<\/td>\nFigure 12-3 Specifying Circular Runout Relative to a Datum Axis <\/td>\n<\/tr>\n
311<\/td>\nFigure 12-4 Total Runout Applied on a Cylinder and Referenced to a Datum Axis <\/td>\n<\/tr>\n
312<\/td>\nFigure 12-5 Total Runout Applied on a Face Surface and Referenced to a Datum Axis <\/td>\n<\/tr>\n
313<\/td>\nFigure 12-6 Size and Runout Tolerance Effects <\/td>\n<\/tr>\n
314<\/td>\nFigure 12-7 Specifying Circular Runout Using a Large Size Tolerance and a Small Runout Tolerance <\/td>\n<\/tr>\n
315<\/td>\nFigure 12-8 Specifying Total Runout Using a Large Size Tolerance and a Small Runout Tolerance <\/td>\n<\/tr>\n
316<\/td>\nFigure 12-9 Specifying Runout Relative to Two Cylindrical Datum Features <\/td>\n<\/tr>\n
317<\/td>\nFigure 12-10 Specifying Runout to a Surface and Diameter <\/td>\n<\/tr>\n
318<\/td>\nFigure 12-11 Specifying Runout Relative to Two Datum Diameters With Form Control Specified <\/td>\n<\/tr>\n
319<\/td>\nFigure 12-12 Specifying Runout Relative to a Surface and Diameter With Form Control Specified <\/td>\n<\/tr>\n
320<\/td>\nFigure 12-13 Total Runout Tolerance Applied to a Tangent Plane <\/td>\n<\/tr>\n
321<\/td>\nFigure 12-14 Total Runout Tolerance Applied to a Tangent Plane With Alternative Method to Establish Datum Axis <\/td>\n<\/tr>\n
322<\/td>\nFigure 12-15 Surface Profile Tolerance Applied to a Tangent Plane <\/td>\n<\/tr>\n
323<\/td>\nFigure 12-16 Runout Tolerance Applied on an Assembly <\/td>\n<\/tr>\n
324<\/td>\nMANDATORY APPENDIX I ALTERNATIVE PRACTICES
I-1 GENERAL
I-2 DIRECTLY APPLIED LOCATION TOLERANCES <\/td>\n<\/tr>\n
325<\/td>\nI-3 ANGULAR RELATIONSHIPS
I-4 FILLETS, CORNERS, CHAMFERS, AND CONES <\/td>\n<\/tr>\n
326<\/td>\nFigure I-1 Tolerance Accumulation <\/td>\n<\/tr>\n
327<\/td>\nFigure I-2 Tolerance Accumulation Ambiguity <\/td>\n<\/tr>\n
328<\/td>\nNONMANDATORY APPENDIX A PRINCIPAL CHANGES AND IMPROVEMENTS
A-1 GENERAL
A-2 STANDARD Y14 FORMAT
A-3 SECTION 1, SCOPE
A-4 SECTION 2, REFERENCES
A-5 SECTION 3, DEFINITIONS
A-6 SECTION 4, FUNDAMENTAL RULES AND GENERAL DIMENSIONING PRACTICES <\/td>\n<\/tr>\n
329<\/td>\nA-7 SECTION 5, GENERAL TOLERANCING AND RELATED PRINCIPLES
A-8 SECTION 6, SYMBOLOGY
A-9 SECTION 7, DATUM REFERENCE FRAMES <\/td>\n<\/tr>\n
330<\/td>\nA-10 SECTION 8, TOLERANCES OF FORM
A-11 SECTION 9, TOLERANCES OF ORIENTATION
A-12 SECTION 10, POSITION TOLERANCES <\/td>\n<\/tr>\n
331<\/td>\nA-13 SECTION 11, TOLERANCES OF PROFILE
A-14 SECTION 12, TOLERANCES OF RUNOUT <\/td>\n<\/tr>\n
332<\/td>\nFigure A-1 Specifying Total Runout Relative to a Datum Diameter <\/td>\n<\/tr>\n
333<\/td>\nNONMANDATORY APPENDIX B FORMULAS FOR POSITIONAL TOLERANCING
B-1 GENERAL
B-2 FORMULA SYMBOLS
B-3 FLOATING FASTENER CASE
B-4 FIXED FASTENER CASE WHEN PROJECTED TOLERANCE ZONE IS USED <\/td>\n<\/tr>\n
334<\/td>\nB-5 PROVISION FOR TILTING OF THE AXIS OR CENTER PLANE
B-6 COAXIAL FEATURES
B-7 LIMITS AND FITS <\/td>\n<\/tr>\n
335<\/td>\nFigure B-1 Floating Fasteners
Figure B-2 Fixed Fasteners
Figure B-3 Coaxial Features <\/td>\n<\/tr>\n
336<\/td>\nNONMANDATORY APPENDIX C FORM, PROPORTION, AND COMPARISON OF SYMBOLS
C-1 GENERAL
C-2 FORM AND PROPORTION
C-3 COMPARISON <\/td>\n<\/tr>\n
337<\/td>\nFigure C-1 Form and Proportion of Datum Symbols <\/td>\n<\/tr>\n
338<\/td>\nFigure C-2 Form and Proportion of Geometric Characteristic Symbols <\/td>\n<\/tr>\n
339<\/td>\nFigure C-3 Form and Proportion of Geometric Dimensioning Symbols <\/td>\n<\/tr>\n
340<\/td>\nFigure C-4 Form and Proportion of Modifying Symbols <\/td>\n<\/tr>\n
341<\/td>\nFigure C-5 Form and Proportion of Dimensioning Symbols and Letters <\/td>\n<\/tr>\n
342<\/td>\nFigure C-6 Comparison of Symbols <\/td>\n<\/tr>\n
343<\/td>\nFigure C-7 Comparison of Other Symbols <\/td>\n<\/tr>\n
344<\/td>\nNONMANDATORY APPENDIX D FORMER PRACTICES
D-1 GENERAL
D-2 CONCENTRICITY DEFINITION REMOVED
D-3 SYMMETRY DEFINITION REMOVED
D-4 CONCENTRICITY AND SYMMETRY SYMBOLS REMOVED
D-5 DECISION DIAGRAM APPENDIX REMOVED <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

ASME Y14.5 – 2018: Dimensioning and Tolerancing<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASME<\/b><\/a><\/td>\n2018<\/td>\n347<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":189255,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2643],"product_tag":[],"class_list":{"0":"post-189250","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-asme","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/189250","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/189255"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=189250"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=189250"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=189250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}