Dimensioning and Tolerancing
EngineeringProductDefinition and RelatedDocumentationPractices
ADOPTIONNOTICE
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Dimensioning and Tolerancing
EngineeringProductDefinitionand RelatedDocumentationPractices
This Standard will be revised when the Society approves the issuance of a new edition.
Periodically certain actions of the ASME Y14 Committe may be published as Cases. Cases are published on the ASME websiteunder the Y14 Committee Page at as they are issued.
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CONTENTS
Committee Roster . Foreword A[xXV
Correspondence With the Y14 Committee . xviSection 1 1.1 Scope ... Introduction .......1.2 General ....1.3 1.4 Reference to This Standard . ASME Y14 Series Conventions . .1.5 Drawings Without Reference to a Standard ... 1.6 1.7 Reference to Gaging ... Symbols .....Section 2 References2.1 Introduction Cited Standards 42.3 2 2 Additional Sources (Not Cited) 4 4Section 3 Definitions 5Section 4 4.1 Fundamental Rules Tolerancing Defaults and Dimensioning Practices . Fundamental Rules . 12 124.2 Units of Measure . 134.3 4.4 Types of Dimensioning Application of Dimensions 13 144.5 Dimensioning Features 154.6 Section 5 Tolerancing Interpretation of Limits Limits of Size and Material Condition Modifiers Location of Features 185.1 General .5.2 5.3 Direct Tolerancing Methods Tolerance Expression 345.4 Interpretation of Limits .. 345.5 Single Limit Toleranced Dimensions . . . Tolerance Accumulation Between Surfaces . 35 355.6 5.7 Dimensions Related to an Origin ..... 355.8 Limits of Size . . 355.9 5.10 Applicability of Modiffers on Geometric Tolerance Values and Datum Feature References Screw Threads 36 385.11 Gears and Splines 385.12 5.13 Boundary Conditions Angular Surfaces 38 385.14 Conical Tapers .... 38
