1、SAE Technical Standards Board Rules providethat: “This report is published by SAE to advancethe state oftechnical and engineering sciences.Theuse ofthis reportisentirelyvoluntary, andits applicabilityand suitabilityfor any particularuse,including any patentinfringement arising therefrom,isthe sole r
2、esponsibility of the user.”SAE reviews each technical reportatleastevery five years atwhich timeitmay bereaffirmed,revised, or cancelled.SAE invites your written comments and suggestions.SHEET 1 OF 3AS9821THIRD ANGLE PROJECTIONAEROSPACE STANDARDAS9821ISSUED 1998-05 REAFFIRMED 2007-06BOLT, MACHINE -
3、HEXAGON HEAD, DRILLED, 1 HOLE,PD SHANK, AMS 5643, .500-20 UNJF-3APREPARED BY COMMITTEE E-25 PROCUREMENT SPECIFICATION: NONEFEDERAL SUPPLY CLASS 5306NOTICETHIS DOCUMENT HAS BEEN TAKEN DIRECTLY FROM U.S. MILITARY SPECIFICATION MS9821, NOTICE 1 AND CONTAINS ONLY MINOR EDITORIAL AND FORMAT CHANGES REQUI
4、RED TO BRING IT INTO CONFORMANCE WITH THE PUBLISHING REQUIREMENTS OF SAE TECHNICAL STANDARDS. THE INITIAL RELEASE OF THIS DOCUMENT IS INTENDED TO REPLACE MS9821, NOTICE 1. ANY PART NUMBERS ESTABLISHED BY THE ORIGINAL SPECIFICATION REMAIN UNCHANGED. THE ORIGINAL MILITARY SPECIFICATION WAS ADOPTED AS
5、AN SAE STANDARD UNDER THE PROVISIONS OF THE SAE TECHNICAL STANDARDS BOARD (TSB) RULES AND REGULATIONS (TSB 001) PERTAINING TO ACCELERATED ADOPTION OF GOVERNMENT SPECIFICATIONS AND STANDARDS. TSB RULES PROVIDE FOR (A) THE PUBLICATION OF PORTIONS OF UNREVISED GOVERNMENT SPECIFICATIONS AND STANDARDS WI
6、THOUT CONSENSUS VOTING AT THE SAE COMMITTEE LEVEL, AND (B) THE USE OF THE EXISTING GOVERNMENT SPECIFICATION OR STANDARD FORMAT.UNDER DEPARTMENT OF DEFENSE POLICIES AND PROCEDURES, ANY QUALIFICATION REQUIREMENTS ANDASSOCIATED QUALIFIED PRODUCTS LISTS ARE MANDATORY FOR DOD CONTRACTS. ANY REQUIREMENTS
7、RELATING TO QUALIFIED PRODUCTS LISTS (QPLS) HAS NOT BEEN ADOPTED BY SAE AND IS NOT PART OF THIS TECHNICAL REPORT.RATIONALE THIS DOCUMENT HAS BEEN REAFFIRMED TO COMPLY WITH THE SAE 5-YEAR REVIEW POLICY. Copyright 2007 SAE International All rights reserved. No part of this publication may be reproduce
8、d, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA) Fax: 724-776-0
9、790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BOLT, MACHINE - HEXAGON HEAD, DRILLED, 1 HOLE,PD SHANK, AMS 5643, .500-20 UNJF-3AA
10、EROSPACE STANDARDAS9821SHEET 2 OF 3AS9821Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BOLT, MACHINE - HEXAGON HEAD, DRILLED, 1 HOLE,PD SHANK, AMS 5643, .500-20 UNJF-3AAEROSPACE STANDARDAS9821SHEET
11、 3 OF 3AS9821NOTES:1. SHANK SHALL BE STRAIGHT WITHIN .002 TOTAL PER INCH OF BOLT LENGTH.2. THE CONCENTRICITY OF THREAD PD IN RELATION TO THE SHANK SHALL BE WITHIN .006 FIR.3. THE CONCENTRICITY OF THE SHANK IN RELATION TO THE WASHER FACE DIAMETER AND HEXAGON SHALL BE WITHIN .023 FIR.4. INCOMPLETE THR
12、EADS NOT TO ENTER FILLET.5. MATERIAL: CORROSION RESISTANT STEEL AMS 5643.6. HARDNESS: ROCKWELL C32-38.7. MANUFACTURING SPECIFICATION: AMS 7474.8. FLUORESCENT PENETRANT INSPECTION PER AMS 2645.9. SURFACE TEXTURE: USAS B46.1-1962. UNLESS OTHERWISE SPECIFIED, SURFACES TO BE 125 MICROINCHES EXCEPT UPSET
13、 HEAD.10. BREAK SHARP EDGES .003-.015 UNLESS OTHERWISE SPECIFIED.11. DIMENSIONS IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCES: LINEAR DIMENSIONS .010, ANGULAR DIMENSIONS 5.12. DO NOT USE UNASSIGNED PART NUMBERS.AS AND AMS ARE SOCIETY OF AUTOMOTIVE ENGINEERS, INC. PUBLICATIONS.THIS STANDARD WAS DEVELOPED COOPERATIVELY WITH THE MILITARY SERVICES BY THE SAE AEROSPACE PART STANDARDS DIVISION.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
