ASME B18.2.4.3M-1979(R2006) Metric Slotted Hex Nuts
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7B90B17D306843C59250CE31FD62AD65 |
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文件大小(MB)： |
0.64 |
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页数： |
17 |
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日期： |
2010-8-22 |
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文本摘录（文本识别可能有误，但文件阅览显示及打印正常，pdf文件可进行文字搜索定位）：
ANSI B18.2.4.3M-19?9,6 December 1979,ACCEPTANCE NOTICE,This non-Government document was adopted on 6 December 1979 and is,approved for use by the DOE) and Federal Agencies. Metric h e x s l o t t e d,n u t s s h a l l conform t o t h i s document and Appendix II, w h i c h e s t a b l i s h e s,standard items f o r Government application. Appendix II, Table 2 s h a l l,b e u s e d f o r item s e l e c t i o n i n a c c o r d a n c e w i t h tbe part numbering system,and s i z e i n f o r m a t i o n c o n t a i n e d t h e r e i n . The i n d i c a t e d i n d u s t r y g r o u p,h a s f u r n i s h e d t h e c l e a r a n c e s r e q u i r e d by e x i s t i n g r e g u l a t i o n s . C o p i e s,of the document are stocked by DclD S i n g l e S t o c k P o i n t , N a v a l P u b l i c a t i o n s,and Forms Center, Philadelphia, PA, 19120, for issue t o DoD a c t i v i t i e s,o n l y . C o n t r a c t o r s a n d i n d u s t r y g r o u p s m u s t o b t a i n c o p i e s d i r e c t l y f r o m :,The American Society of Mechanical Engineers,United Engineering Center, 345 E. 4 7 t h S t r e e t,New York, h'k' 10017 'or,The American National Standards Institute,1430 Broadway, New York, hY 10018,Title of Document: Nut, Slotted, Hex - Metric,ASS? Document No. : ARS1 B18.2.4.3M-1979,Date O?Specific Issue Adopted: 6 December 1979,Releasing Industry Group: The American Society of Mechanical Engineers,n s : Army - AR . Amy - AR,Air Force - 99 (Project 5310-1043),Navy - AS,Review A c t i v i t i e s :,Army - AV, MI, ER,Navy - MC,DU - IS,NSA - WS,User A c t i v i t i e s :,Army - ME, AT,Navy - SH,Civil Agencies :,GSA-FSS,NOTICE: When reaffirmation, amendment, r e v i s i o n , o r c a n c e l l a t i o n o f,t h i s s t a n d a r d is i n i t i a l l y p r o p o s e d , the i n d u s t r y g r o u p r e s p o n s i b l e,for this stasdard shall i n f o r m t h e M i l i t a r y C o o r d i n a t i n g A c t i v i t y of,t h e p r o p o s e d a c t i o n and r e q u e s t t h e i r p a r t i c i p a t i o n .,4,ASME BL8-2-4-3M 77 W 0757b70 0043231 T m ,3 -0% I (,ERRATA,to,ANSI B18.2.4.3M-1979,METRIC SLOTTED HEX NUTS,Page 4, in the standard shall be replaced with the,second pageo f thk Errata,Page 7, for MATERIAL AND FINISH CODE A and,B, change 0,005 mm to read 5.1 lm,.J..,THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS,345 East 47 Street, New York, N.Y. 1 O01 7,May 1981,AMERICAN NATIONAL STA.NDARD,Metric Slotted Hex Nuts,ANSI’B18.2.4.3M - 1979,SECRETA RIA T,SOCIETY OF AUTOMOTIVE ENGINEERS,THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS,Government Key Words:,Nut, Slotted, Hex -,Metric,PUBllSHED BY,T H E A M E R I C A N S O C I E T Y OF M E C H A N I C A L ENGINEERS,United Engineering Center 345 East 47th Street New York, N.Y. 10017,- .,Date of Issuance: May 15,1980,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.,i,THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS,Copyright O 1980 by,All Rights Reserved,Printed in U.S.A.,f \’ >H,FOREWORD,American National Standards Committee B18 for the standardization of bolts, screws, nuts, rivets and,similar fasteners was organized in March 1922, as’bctional Committee B18 under the aegis of the American,Engineeting Standards Committee (later the American Standards Association, then the United States of,America StandardsI nstitute and, as of October 6,1969, the American National StandardsI nstitute, Inc.), with,the Society of Automotive Engineers and the American Society of Mechanical Engineers as joint sponsors.,Subcommitee 2 was subsequently established and charged wtihthe responsibility for technical content of standards,covering wrench headb olts and nuts.,At its meeting on December 4, 1974, Committee B18 authobd preparation of a series of standards for,metric fasteners. Subcommittee 2 was assigned respoMbility for developing standards for metric hex bolts,scrcws and nuts.,At a meeting on September 22, 1976, Subcommittee 2 organized the contents of a standard covering six,different styles of hex nuts. Actual drafting was postponed until ISO/TC2 could reach final decisions relating,to basic dimensions and characteristics ohfe x bolts, screws andn uts. At ISO/TC2 meetings heldi n April 1977,final actions were taken, Committee B18 affmed the TC2 decisions at a meeting on June 29,1977, and drafting,of this standard was started.,In February 1978, Committee B18 established a cooperative program with the Department of Defense to,draft American National Standards for metric fasteners in such a way that they could be used directly by the,Government for ……
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