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    EN 2911-1995 en Aerospace Series - Shank Nuts Self-Locking in Heat Resisting Steel FE-PA92HT (A 286) Silver Plated - Classification 1100 MPa (at Ambient Temperature) 650 Degrees C《.pdf

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    EN 2911-1995 en Aerospace Series - Shank Nuts Self-Locking in Heat Resisting Steel FE-PA92HT (A 286) Silver Plated - Classification 1100 MPa (at Ambient Temperature) 650 Degrees C《.pdf

    1、t CEN ENu2911 95 111 3404589 O332429 35T I The European Standard EN 2911 : 1995 has the status of a British Standard t, BRITISH STANDARD AEROSPACE SERIES I Shank nuts, self-locking, in heat resisting steel FE-PA92HT (A 286), silver plated - Classication : 1100 MPa (at ambient temperature) / 650 “C I

    2、Cs 49.040.20 BS EN 2911 : 1995 CEN EN*29LL 95 3404589 OLL2430 071 I BS EN 2911 : 1995 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 November 1995 O ES1 1995 Committ

    3、ees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee ACW12, Aerospace fasteners and fastening systems, upon which the following bodies were represented Association of Electronics, Telecommunications and Business Equipment British Ind

    4、ustrial Fasteners Federation Ministry of Defence Society of British Aerospace Companies Ltd. Industries Amendments issued since publication Amd.No. ID* I The following BSI references relate to the work on this standard Committee reference ACW12 Draft for comment SU76309 DC ISBN O 680 24489 X CEN EN*

    5、E91iL 95 3404587 0112i.131 TO8 S BS EN 2911 : 1995 Contents Committees responsible National foreword Page Inside front cover ii Foreword Specification 1 Scope 2 Normative references 3 Required characteristics 4 Designation 5 Marking 6 Technical specification i CEN ENa2911 95 118 3404589 0332432 944

    6、m BS EN 2911 : 1995 National foreword This British Standard has been prepared by Technical Committee ACW12 and is the English language version of EN 2911 : 1995 Aerospace series - Shank nuts, self-locking, in heat resisting steel FE-PA9ZHT (A 286j, silver plated - Chssvication : 11 O0 MPa (at ambien

    7、t tempmturej / 650 OC, published by the European Committee for Standardkition (CEN). EN 2911 : 1995 was produced as a result of international discussions in which the United Kingdom took an active part. Cross-references There are no British Standards corresponding to the European Standards referred

    8、to in the text. Publication referred to IS0 58552 : 1988 Corresponding British Standard BS 6293 Aerospace - MJ threads Past 2 : 1994 Limit dimensions for bolts and nuts Compliance with a British Standard does not of itself confer immunity from legai obligations. ii CEN EN*2711 75 3404587 0112433 880

    9、 W EUROPEAN STANDARD NOR,ME EUROPXNNE EUROP;/vscHE Nom EN 2911 July 1995 ICs 49.040.20 Descriptors: aircraft industry, self-locking nut, heat resistant steel, silver coating, classification, surface treatment, dimension, dimensional tolerance, designation Enghsh version Aerospace series - Shank nuts

    10、, self-locking, in heat resisting steel FE-PA92HT (A 286), silver plated - Classification : 1100 MPa (at ambient temperature) / 650 “C Srie arospatiale - crous sertir, freinage interne, en acier rsistant chaud FE-PA92HT (A 286), argents - Classification : 1100 MPa ( temprature ambiante) / 650 “C Luf

    11、t- und Raumfahrt - Einnientmuttern, selbstsichernd, aus hochwannfestem Stahl FE-PA92HT (A 286), versilbert - Klasse : 1100 Mpa (bei Raumtemperatur) / 650 “C This European Standard was approved by CEN on 199503-18. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipula

    12、te the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exis

    13、ts in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bod

    14、ies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secr

    15、etariat: rue de Stassart 36, B-1050 Brussels O 1995 Copyright reserved to CEN members Ref. No. EN 2911 : 1995 E CEN ENx29LL 95 3404589 0112434 717 W Page 2 EN 2911 : 1995 Foreword This European StanM has been prepared by the European Association of Aerospace Manufacturers (AECMA). After inquiries an

    16、d votes carried out in accordance with the niles of this Association, this standard has successfully received the approval of the Nationa3 Associaions and the Official Services of the member countries of AECMA, prior to its presentation to CEN. This European Standard shall be given the status of a n

    17、ational standard, either by the publication of an identical text or by endorsement, at the latest by January 1996, and corlicting national standards shall be withdrawn at the latest by Januaq 1996. According to the CENKENELEC Internal Regulations, the following countries are bound to implement this

    18、European Standard Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. . CEN ENa29LL 95 3404589 0332435 b53 . Page 3 EN 2911 : 1995 1 Scope This standard specifies the chara

    19、cteristics of self-locking shank nuts in FE-PAgZHT, silver plated, for aerospace applications. Classification : 1 100 MPa 1 I650 OC 2, 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at

    20、the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Stdirdard only when incorporated in it by amendment or revision. For undated references the latest edition of

    21、the publication referred to applies. IS0 5855-2 Aerospace - MJ threads - Part 2 : Limit dimensions for bolts and nuts EN 2399 Heat resisting steel FE-PA92-HT - R, 2 900 MPa - Bars for forged bolts - O 5 25 mm - Aerospace series EN 2424 Aerospace series - Marking of aerospace products EN 2786 Aerospa

    22、ce series - Electrolytic silver plating of fasteners 41 EN 3304 Aerospace series - Nuts, self-locking, in heat resisting steel FE-PA92HT (A2861 - Classification : 1 1 O0 MPa / 650 OC - Technical specification ) EN 3639 Aerospace series - Heat resisting alloy FE-PA2601 - Softened and cold worked - Wi

    23、re for forged fasteners - D S 15 mm - 900 MPa 5 R, 5 1 1 O0 MPa 4, 3 Required characteristics 3.1 Configuration - Dimensions - Tolerances - Masses See figure 1 and table 1. Dimensions and tolerances are in millimetres. They apply after silver plating. 3.2 Materials EN 2399 or EN 3639 3.3 Surface tre

    24、atment EN 2786 Thickness : - external surfaces : 5 jm to 15 pm ; - thread 2 MJ6 : 5 pm min. on thread flanks ; - thread MJ5 : shall show complete coverage, without thickness requirement. 11 Corresponds to the minimum tensile stress which the nut is able to withstand at ambient temperature without br

    25、eaking or cracking when tested with a bolt of a higher strength class. 2) Maximum test temperature of the parts 3) Published as AECMA Standard at the date of publication of this standard 4) Published as AECMA Restandard at the date of publication of this standard CEN EN*29LL 95 3404589 OLL243b 5T m

    26、Page 4 EN 2911 : 1995 Values apply before silver plating. Thread surface will be as achieved by normal methods of manufacture. Remove sharp edges 0,l to 0,4 Form out-of-round in this area to achieve the self-locking requirement (tooling marks permissible). L X Marking in these areas but not in locki

    27、ng area +I O, 2 1 A Fax: 0181 996 7001. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on nation

    28、al, European and international standards through its Library, the Standardline Database, the BSI Information Technology Service (STIS) and its Technical Help to Exporters Service. Contact the Information Department at Chiswick Tel O181 996 7111; Fax: 0181 996 7048. Subscribing members of BSI are kep

    29、t up lm date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Customer Services, Membership at Chiswick “el O181 996 7002; Fax: 0181 996 7001. copyright Copyright subsists in all BSI publications and no

    30、part may be reproduced in any form without the prior permission in writing of BSI. This does not preclude the free use, in the course of implementing the standard of necessary details such as symbols and size, type or grade designations including use by incorporation into computer programs, but wher

    31、e these details are reproduced including without limitation in printed form, in computer programs or in any other form whatsoever, the permission in writing of BSI must be obtained and if granted will be on terms including royalty, before the product is sold, licensed or otherwise exploited for commercial gain. Enquiries about copyright should be made to the Copyright Manager at Chiswick ISBN O 680 24489 X Product code o0609OOO ACW12 I


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