ASME_B1-20-1-1983.pdf

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 PIPE THREADS,GENERAL PURPOSE(INCH)ANSI/ASME B1.20.1-1983(REVISION AND REDESIGNATION OF ANSI 82.1-1968)REAFFIRMED 1992 FOR CURRENT COMMITTEE PERSONNEL PLEASE SEE ASME MANUAL AS-1 1 SPONSORED AND PUBLISHED BY T H E A M E R I C A N S O C I E T Y O F M E C H A N I C A L E N G I N E E R S United Engineering Center 345 East 47th Street New York,N.Y.1001 7 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.REAFFIRMED 2001FOR CURRENT COMMITTEE PERSONNELPLEASE E-MAIL CSasme.orgANSllASME 81.20.1-1983 25 October 1984 ACCEPTANCE NOTICE This non-Government document was adopted on 25 October 1984 and is approved for use by the Federal Agencies.The indicatec industry group has furnished the clearance required by existing regulations.Copies of the document are stocked by the DoD Single Stock Point,Naval Publications and Forms Center,Philadelphia,PA 19120,for issue to DoD activities only.Contractors and industry groups must obtain copies directly from:The American Society of Mechanical Engineers 345 East 47th Street New York,New York 10017 or The American National Standards Institute 1430 Broadway New York,New York 10018 Title of Document:Pipe Threads,General Purpose(Inch)Date of Specific Issue Adopted:4 February 1983 Releasing Industry Group:The American Society of Mechanical Engineers NOTICE:The Federal agencies use of this standard is subject to all the requirements and limitations of FED-STD-H28/7 Screw Thread Standards for Federal Services Section 7,Pipe Threads,General Purpose.NOTICE:When reaffirmation,amendment,revision,or cancellation of this standard is initially proposed,the industry group re.sponsible for this standard,shall inform the military coordinating activity or the proposed change and request participation.Custodians:Army-AR Navy-AS Air Force-11 Review Activities:Navy-YD Army-AT,GL,ME,MI Civil Agency Coordinating Activities:Commerce-NBS Justice-FPI DOT-ACO,APM,FAA,FRA,NHT NASA-JFK,LRC,MSF HUD-HCC GSA-FSS,PCD USDA-AFS Military Coordinating Activity:DLA-IS(Project THDS-0052)AREA THD:Date of Issuance:August 31,1983 This code or standard was developed under procedures accredited as meeting the criteria for American National Standards.The Consensus 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 which provides an opportunity for additional public input from industry,academia,regulatory agen-cies,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 personk)affiliated with industry is not to be interpreted as government or industry endorsement of this code or standard.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.Copyright 1983 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All Rights Reserved Printed 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.FOREWORD(This Foreword is not part of American National Standard,Pipe Threads,General Purpose(Inch)ANSI/ASME B1.20.1-1983.)In 1973 American National Standards Committee 82,which had formerly been rcsponsiblc for pipe thread standards,was absorbed by ANSI Standards Committee BI and reorganized as subcommittee 20.A com-plete rewrite of the B2.2-1968 standard on Dryseal Pipe Threads has been completed,with the product thread data in separate documents from the gaging standards for Dryseal Pipe Threads.The system of num-bering,to include metric conversions,is as follows:ANSI B1.20.3-1976 Dryseal Pipe Threads (Inch)ANSI B I.20.4-1976 Dryseal Pipe Threads (Metric Translation)ANSI B1.20.5-1978 Gaging for Dryseal Pipe Threads (Inch)In preparation,BI.20.6M Gaging for Dryseal Pipe Threads (Metric Translation)A cotnplctc rcwritc of the B2.l-1968 standard on Pipe Threads (Except Dryseal)was then undertaken.Thc system of numhcring,to include metric conversions,is as follows:ANSIlASME BI 20.1 Pipe Threads,Ge