Gage Blanks

A N A M E R I C A N N A T I O N A L S T A N D A R D

Intentionally left blank

ASME B47.1-2007

(Revision of ASME/ANSI B47.1-1988)

Gage Blanks

AN AMERICAN NA TIONAL S T AND ARD

Three Park Avenue • New York, NY 10016

Date of Issuance: April 7, 2008

This Standard will be revised when the Society approves the issuance of a new edition. There will be no addenda or written interpretations of the requirements of this Standard issued to this edition.

ASME is the registered trademark of The American Society of Mechanical Engineers.

This code or standard was developed under procedures accredited as meeting the criteria for American National Standards. The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate. The proposed code or standard was made available for public review and comment that provides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at-large.

ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity.

ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent, nor assume any such liability. Users of a code or standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, is entirely their own responsibility.

Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted as government or industry endorsement of this code or standard.

ASME accepts responsibility for only those interpretations of this document issued in accordance with the established ASME procedures and policies, which precludes the issuance of interpretations by individuals.

No part of this document may be reproduced in any form, in an electronic retrieval system or otherwise,

without the prior written permission of the publisher.

The American Society of Mechanical Engineers Three Park Avenue, New York, NY 10016-5990

Copyright © 2008 by

THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS

All rights reserved Printed in U.S.A.

CONTENTS

Figures

1. Plain Cylindrical Plug Gages, Details of Construction — Range Above

   0.010 in. to and Including 8.010 in. 9

2. Plain Cylindrical Plug Gages, Details of Construction — Range Above

   8.010 in. 24

3. Thread Plug Gages — Details of Construction 26

4. Plain Ring Gages — Details of Construction 40

5. Thread Ring Gage Locking Device, Details of Construction — Range 1 in.

   to 51⁄2 in., Inclusive 43

6. Thread Ring Gages, Details of Construction — Range 0.060 in. to and

   Including 4.760 in. 45

7. Thread Ring Gages, Details of Construction — Range Above 0.510 in. to and

   Including 12.260 in. 46

8. Three-Piece Spline Plug Gage Assembly 61

9. Spline Plug Gage Stands 62

10. Adjustable Snap Gages, Details of Construction — Models A, B, C, and MC 83

11. Adjustable Snap Gages, Details of Construction — Model E 83

12. Model MC Snap Gage Details 89

13. Adjustable Length Gage, Double Sided, Models KA and KB, Details of

    Construction 98

14. Adjustable Length Gage, Progressive, Models LA and LB, Details of

    Construction 99

15. Adjustable Length Gage, Double Sided, Model KA, Details of Gage Heads 100

16. Adjustable Length Gage, Double Sided, Model KB, Details of Gage Heads 101

17. Adjustable Length Gage, Progressive, Model LA, Details of Gage Heads 102

18. Adjustable Length Gage, Progressive, Model LB, Details of Gage Heads 103

19. Adjustable Length Gages — Details of Spacing Tubes 104

20. Master Disks — Styles 1, 2, and 3 106

21. Insulating Grips for Master Disks — Range Above 1.510 in. to and

    Including 8.010 in. 106

22. Official Monogram for Designating Products Made to American Gage Design

    Standards 113

23. Recommended Design of Taper Plug Gage for Special Applications and Method

    of Dimensioning 113

24. Recommended Design of Taper Ring Gage for Special Applications and Method

    of Dimensioning 113

25. Recommended Design of Bar Type Flush Pin Gage 116

26. Recommended Design of Small Countersink Type Flush Pin Gage — Range 3⁄4 in.

    to 11⁄2 in 116

27. Recommended Design of Large Countersink Type Flush Pin Gage 117

28. Application of Countersink Type 117

29. Recommended Design of Small Built-Up Snap Gage 118

30. Recommended Design of Large Built-Up Snap Gage 118

Tables

1. Handles for Wire Type Plain Cylindrical and Wire Type Thread Plug Gages,

   Wire Type Design — Range Above 0.010 in. to and Including 1.010 in. 10

2. Wire Type Plug Gage Handles, Details of Body 11

3. Wire Type Plug Gage Handles, Details of Capping Nut 12

4. Single-End Wire Type Plug Gage Handles, Details of Body 13

5. Wire Type Plug Gage Collet Nuts 14

6. Wire Type Plug Gage Collet Bushings, Size Ranges 15

7. Handles for Plain Cylindrical and Thread Plug Gages, Taper Lock

   Design — Range Above 0.059 in. to and Including 0.230 in. 16

8. Handles for Plain Cylindrical and Thread Plug Gages, Taper Lock

   Design — Range Above 0.230 in. to and Including 1.510 in. 17

9. Handles and Screws for Plain Cylindrical, Thread, and Spline (Involute, Serrated, Straight-Sided) Plug Gages, Trilock Design — Range Above 0.760 in. to and

   Including 8.010 in. 18

10. Plain Cylindrical Plug Gaging Members, Taper Lock Design — Range

    Above 0.059 in. to and Including 0.230 in. 20

11. Plain Cylindrical Plug Gage Blanks, Wire Type Design — Range

    Above 0.010 in. to and Including 1.010 in. 20

12. Plain Cylindrical Plug Gaging Members, Taper Lock Design — Range

    Above 0.230 in. to and Including 1.510 in. 21

13. Plain Cylindrical Plug Gaging Members, Trilock Design — Range

    Above 0.760 in. to and Including 2.510 in. 22

14. Plain Cylindrical Plug Gaging Members, Trilock Design — Range

    Above 2.510 in. to and Including 8.010 in. 23

15. Plain Cylindrical Plug Gages, Annular Design — Range Above 8.010 in. to and Including 12.010 in. 25

16. Thread Plug Gaging Members, Taper Lock Design — Range From No. 0 to No. 12, Inclusive 27

17. Thread Plug Gaging Members, Wire Type Design — Range Above 0.030 in. to

    and Including 1.010 in. 28

18. Thread Plug Gaging Members, Taper Lock Design — Range From 1⁄4 in. to and Including l1⁄2 in 29

19. Thread Plug Gaging Members, Trilock Design — Range Above 3⁄4 in. to and

    Including 21⁄2 in 30

20. Thread Plug Gaging Members, Trilock Design — Range Above 21⁄2 in. to and

    Including 8 in. 31

21. Thread Plug Gaging Members, Annular Design — Range Above 8.010 in. 32

22. Fine-Pitch Instrument Thread Plug Gaging Members, Taper Lock

    Design — Range No. 0 to 11⁄2 in., Inclusive 33

23. Fine-Pitch Instrument Thread Plug Gaging Members, Trilock Design — Range

Above 11⁄2 in. to and Including 21⁄2 in 34

1. Machine Taper Ring Gages, With Tang 76

2. Machine Taper Plug Gages, Without Tang 78

3. Machine Taper Ring Gages, Without Tang 81

4. Sizes of Combination Drills and Countersinks for Machine Taper Plug Gages 82

5. Plain Adjustable Snap Gages, Models A and B — Details of Frame 84

6. Plain Adjustable Snap Gages, Model C — Details of Frame 86

7. Plain Adjustable Snap Gages, Model MC — Details of Frame 88

8. Adjustable Snap Gages, Extended Anvil, Model E — Details of Frame 90

9. Models A, B, C, and E Snap Gage, and Models K and L Adjustable Length Gage Adjusting Screws 92

10. Models A, B, C, and E Snap Gage, and Models K and L Adjustable Length Gage Locking Screws 92

11. Models A, B, C, and E Snap Gage, and Models K and L Adjustable Length Gage Locking Bushings and Nuts 93

12. Model A Snap Gage Gaging Pins 93

13. Models B, C, and E Snap Gage, and Models K and L Adjustable Length Gage

    Gaging Buttons 94

14. Model C Snap Gage and Model L Adjustable Length Gage Anvils 94

15. Model C Snap Gage and Model L Adjustable Length Gage Anvil Screws 95

16. Model E Snap Gage Anvil and Anvil Screws 96

17. Models A, B, C, E, and MC Snap Gage, and Models KA, KB, LA, and LB

    Adjustable Length Gage Marking Disks 97

18. Adjustable Length Gages, Parts List 105

19. Recommended Applicability of Adjustable Length Gage as Related to Product

    Tolerance 105

20. Master Disks — Range Above 0.105 in. to and Including 0.365 in. 107

21. Master Disks — Range Above 0.365 in. to and Including 1.510 in. 108

22. Master Disks — Range Above 1.510 in. to and Including 2.510 in. 109

23. Master Disks — Range Above 2.510 in. to and Including 8.010 in. 110

24. Insulating Grips for Master Disks — Range Above 0.105 in. to and

    Including 1.510 in. 111

25. Separator Plates for Master Disks — Range Above 1.510 in. to and

    Including 8.010 in. 112

26. Tie Rods for Master Disks — Range Above 1.510 in. to and Including 8.010 in. 112

27. Recommended Design of Flat Plug Gages — Range Above 1.510 in. to and

    Including 8.010 in. 114

28. Recommended Design of Barrel Type Flush Pin Gage 115

29. Flat Plug Gage — Additional Specifications 119

30. Handle for Flat Plug Gage 119

    Mandatory Appendices

    1. Conversion Table From Inch to Millimeter 121

    2. Metric Equivalents of Selected Tables 124

FOREWORD

The original American Gage Design Committee was formed in 1926 to consolidate, for the benefit of industry at large, the many independent efforts at gage standardization that were in progress at the time.

In March 1930, the standards developed were published as Miscellaneous Publication No. 100 of the National Bureau of Standards, entitled "Plain and Thread Plug and Ring Gage Blanks, Recommended Commercial Standards," and were subsequently promulgated by the Department of Commerce as Commercial Standard CS8-30. They were later approved by the American Standards Association (now the American National Standards Institute) as American Standard B47-1932.

The first revision was designated CS8-33 and also approved as ASA B47-1933. A second revision was made in 1940, and a third revision was published as CS8-51, effective April 15, 1951. A Supplement was issued to CS8-51 in 1955 and preparation of a fourth revision in supplement form was approved in 1961. It was decided, however, to issue a new document instead of adding another supplement and, in 1961, the American Gage Design Committee, operating under the guidance of a Chairman, Secretary, Executive Committee, and seven technical subcommittees, prepared the last revision of this document published by the U.S. Department of Commerce as Commercial Standard CS8-61.

In 1962, the American Standards Association accepted the responsibility for distribution and maintenance of the American Gage Design Standard CS8-61, Gage Blanks. The American Standards Association designated this standard as ASA B47.1-1962.

1. Standards Committee B47 was organized and staffed at a meeting held in Dearborn, Michigan, in January 1969. This Committee functions under the new designation American National Standards Committee B47. Seven subcommittees worked on the revision of the B47.1-1962 document.

   In 1975, the dial indicator standardization was transferred from the jurisdiction of the B47.1 Standards Committee to that of ANSI Standards Committee B89.

   An American Standard implies a consensus of those substantially concerned with its scope and provisions. An American Standard is intended as a guide to aid the manufacturer, the consumer, and the general public. The existence of an American Standard does not in any respect preclude anyone, whether he has approved the standard or not, from manufacturing, marketing, purchasing, or using products, process, or procedures not conforming to the standard. American Standards are subject to periodic review and users are cautioned to obtain the latest editions. Producers of goods made in conformity with the American Standard are encouraged to state, on their own, responsibility in advertising and promotion material, or on tags or labels, that the goods are produced in conformity with particular American Standards.

   A metric translation of B47.1 was issued in 1978. This separate document, B47.1A, contained primarily a soft conversion of certain dimensions and tables considered to be most important. It established official metric diameter ranges and gaging lengths for plain and thread plug and ring gages and related handles, plus snap gage ranges. Note that changes made in the 1981 revision of B47.1 automatically superseded the metric dimensions since it is intended that blank lengths, size ranges, and other dimensions be essentially the same whether expressed in inches or millimeters. Appendix A of that document gives helpful information for converting other inch dimensions into millimeters.

   The 1981 revision was approved as an American National Standard by the American National Standards Institute and designated as ANSI B47.1 on March 1981.

   A periodic review of this Standard, undertaken by the Committee in 1986, resulted in agreement that the standard be updated to include revision to trilock blanks lightening holes and some of the snap gage anvil screws and snap gage frames in order to make the dimensions standard, as well as in the agreement that pipe trilock blanks 3.5 in. to 6 in. should be the same as smaller trilock in reference to the locking grooves and counterbore.

   It was also agreed that the metric supplement, B47.1aM, which was published in 1982, be a part of this Standard in the form of an Appendix. The intent of the supplement was to establish metric range and gaging lengths for plugs, handles, and snap gage ranges. Dimensions are soft conversions.

   A proposal containing these and other changes, as well as editorial corrections, was prepared for and balloted by letter ballot to ASME Committee B47. Following approval by ASME, t