4-43_Edtn_2003.pdf

Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.ASME Y14.43ADOPTION NOTICEASME Y14.43,Dimensioning and Tolerancing Principles for Gages and Fixtures,was adopted on 28 January 2003for use by the Department of Defense,DoD.Proposed changes by DoD activities must be submitted to the DoDAdopting Activity:Commander,U.S.Army TACOM-ARDEC,ATTN:AMSTA-AR-QAW-E,Picatinny Arsenal,NJ07806-5000.Copies of this document may be purchased from The American Society of Mechanical Engineers(ASME),22 Law Drive,PO Box 2900,Fairfield,NJ 07007-2900;http:/www.asme.org.Custodians:Adopting Activity:Army ARArmy ARNavy SAAir Force 16(Project DRPR-0382)DLA DHReview Activities:Army AT,AV,CE,CR,EA,MI,SM,TENavy AS,CH,EC,MC,OS,SH,TD,YDAir Force 11,13,19,68,70,71,84,99DLA CC,GS,ISNSA NSAMSC N/AAREA DRPRDISTRIBUTION STATEMENT A.Approved for public release;distribution is unlimited.Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.ANAMERICANNATIONALSTANDARDDIMENSIONINGANDTOLERANCINGPRINCIPLESFORGAGESANDFIXTURESASMEY14.43-2003Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.Date of Issuance:September 12,2003The next edition of this Standard is scheduled for publication in 2008.There will be no addenda orwritten 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 NationalStandards.The Standards Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate.The proposed code or standard was madeavailable forpublic review andcomment thatprovides an opportunityfor additional publicinput 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 anyitems mentioned in this document,and does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent,nor assumes any such liability.Users of a code or standard are expresslyadvised that determination of the validity of any such patent rights,and the risk of infringement of such rights,isentirely their own responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with the establishedASME 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 EngineersThree Park Avenue,New York,NY 10016-5990Copyright 2003 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.CONTENTSForeword.ivCommittee Roster.v1General.12Principles.33Gage Design.74Dimensioning and Tolerancing.165Usage.176Fixtures.19Figures1Diamond Pin Construction.102Fixed Pin Construction.123Pushpin Construction Type 1.134Pushpin Construction Type 2.14Mandatory AppendicesIIllustrations of Gaging Policy.21IIMaterial Condition Explanation.27Nonmandatory AppendicesAExamples of Gage Characteristics.31BExamples and Illustrations.45CRegardless of Feature Size.95iiiCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.FOREWORDThisStandardcontainsinformationshowingmethodsforcreatinggagesandfixturesforfeaturesthat use principles found in ASME Y14.5M-1994,Dimensioning and Tolerancing.It addressesGO gages for measuring maximum material condition and NOGO gages for measuring leastmaterialcondition.ThismaterialwasdevelopedfromANSIB4.4M-1981,InspectionofWorkpieces,which has since been retired.This Standard also addresses,for the first time,functional gagesused for the measurement of geometric tolerances