ASME B18.2.4.6M-1979 Metric heavy hex nuts
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ID： |
C5CF61C0D3AC48F788720A74AFD6CBC5 |
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文件大小(MB)： |
0.41 |
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页数： |
16 |
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文件格式： |
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日期： |
2008-4-6 |
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购买： |
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）：
工ND-STD ANSI Blfl . 2 . M . bN-76! ■ ”””8 0001575 3 丒,A"一。3,ANSI B18.2.4.6M-1979,6 December 1979,ACCEPTANCE NOTICE,This non-Government document was adopted on 6 December 1979 and is,approved for use by the DoD and Federal Agencies. Metric heavy hex nuts,shall conform to this document and Appendix I, which establishes standard,items for Government application. Appendix I, Table 2 shall be,used for item selection in accordance with the part numbering system and,size information contained therein. The indicated industry group has,furnished the clearances required by existing regulations. Copies of,the document are stocked by 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,United Engineering Center, 345 E. 47th Street,New York, NY 10017 or,The American National Standards Institute,1430 Broadway, New York, NY 10018,Title of Document; Nut, Heavy Hex - Metric,ANSI Document No.: ANSI B18.2.4.6M-1979,Date of Specific Issue Adopted: 6 December 1979,Releasing Industry Group: The American Society of Mechanical Engineers,Custodians:,Army - AR,Navy - AS,Air Force - 99,Review Activities:,Army - AV, MI, ER,Navy - MC,DLA - IS,NSA - NS,Civil Agencies:,GSA-FSS,Military Coordinating Activity:,Army - AR,(Project 5310-1046),User Activities:,Army - ME, AT,Navy - SH,NOTICE: When reaffirmation, amendment, revision, or cancellation of,this standard is initially proposed, the industry group responsible,for this standard shall inform the Military Coordinating Activity of,the proposed action and request their participation,THIS DOCUMENT CONTAINS I PAGES. .----------------------. -1----- FSC,PtovCT by IHS 112ttrUwawW1 ASVE,Ko EKxJsticc or necwtrtlng wtuuxn Mss frcm IHS,ASHE Bia.S.M.LM 74 跳 075皿70 004327^ S,?一心一。2,ERRATA,to,ANSI B18.2.4.6M-1979,METRIC HEAVY HEX NUTS,Title Page, for Government Key Words, change to,read Nuts, Heavy Hex — Metric.,Page 6, for MATERIAL AND FINISH CODE A and,B, change 0.005 mm to read 5.1 pm,THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS,345 East 47 Street, New York, N.Y. 10017,April 1981,ASHE Blfl.2.4.bM 7tl ■。75cl670 00U32fl0 1 , 。一。7-。3,AMERICAN NATIONAL STANDARD,Metric Heavy Hex Nuts,ANSI B18.2.4.6M -1979 Government Key Words:,Heavy Hex Nuts - Metric,SECRETARIA T,SOCIETY OF AUTOMOTIVE ENGINEERS,THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS,PUBLISHED BY,THE AMERICAN SOCIETY O F MECHANICAL ENGINEERS,United Engineering Center 345 East 47th Street New York, N.Y. 10017,C中尸61 A9/E,PimiCM by IMS AS，怎-,Nn rajxMuHon cr Mtwcdan。pwine?a ThniZ 田 Vtxii HS,ASHE Blfi.a.M.bM 7cl 蜘I OVS^bTO 0043261 3,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.,Dato of Issuance: March 31, 1980,Copyright . 1980 by,THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS,All Rights Reserved,Printed in U.S.A.,A SME Msmatinnal ?,ASNE Bia.E.H.bM 7q■ OVSTbTO 00H32fla S,FOREWORD,American National Standards Committee B18 for the standardization of bolts, screws, nuts, rivets and,similar fasteners was organized in March 1922, as Sectional Committee B18 under the aegis of the American,Engineering Standards Committee (later the American Standards Association, then the United States of,America Standards Institute and, as of October 6,1969, the American National SUndards Institute, !nc.)?with,the Society of Automotive Engineers and the American Society of Mechanical Engineers as joint sponsors.,Subcommitee 2 was subsequently established and charged with the responsibility fbr technical content of standards,covering wrench head bolts and nuts.,At its meeting on December 4, 1974, Committee B18 authorized preparation of a series of standards for,metric fasteners. Subcommittee 2 was assigned responsibility for developing standards fbr metric hex bolts,screws 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 of hex bolts, screws and nuts. At ISO/TC2 meetings held in April 1977,final actions were taken, Committee B18 affirmed 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 procu……
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