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1、BRITISH STANDARD AEROSPACE SERIES BS EN 4122:2003 Shank nuts, self-locking, in heat resisting steel FE-PA92HT (A286), silver plated on thread Classification: 1 100 MPa (at ambient temperature) / 650 ? ?C The European Standard EN 4122:2003 has the status of a British Standard ICS 49.030.30 ? Licensed
2、 Copy: sheffieldun sheffieldun, na, Sat Nov 04 08:36:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 4122:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 10 February 2003 BSI 10 February 2003 ISBN 0 580 41217 2 National foreword This
3、 British Standard is the official English language version of EN 4122:2003. The UK participation in its preparation was entrusted by Technical Committee ACE/12, Aerospace fasteners and fastening systems, to Subcommittee ACE/12/1, Aerospace fasteners and fastening systems (international), which has t
4、he responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section e
5、ntitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compli
6、ance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related
7、international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 6, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document
8、was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 08:36:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4122 January 2003 ICS 49.030.30 English version Aerospace series
9、- Shank nuts, self-locking, in heat resisting steel FE-PA92HT (A286), silver plated on thread - Classification: 1 100MPa (at ambient temperature) / 650C This European Standard was approved by CEN on 2 June 2002. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulat
10、e 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 Management Centre or to any CEN member. This European Standard exists
11、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 Management Centre has the same status as the official versions. CEN members are the national standards bodies o
12、f Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHE
13、S KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4122:2003 E Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 08:36:12 GMT+00:00 2006, Uncontrolle
14、d Copy, (c) BSI EN 4122:2003 (E) 2 Contentspage Foreword3 1Scope 3 2Normative references 3 3Required characteristics.4 3.1Configuration - Dimensions - Tolerances Masses 4 3.2Materials4 3.3Surface treatment 5 4Designation.6 5Marking .6 6Technical specification .6 Licensed Copy: sheffieldun sheffieldu
15、n, na, Sat Nov 04 08:36:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 4122:2003 (E) 3 Foreword This document (EN 4122:2003) has been prepared by the European Association of Aerospace Manufacturers Standardization (AECMA-STAN). After enquiries and votes carried out in accordance with the rules of
16、this Association, this Standard has received the approval of the National Associations 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 national standard, either by publication of an identical text or
17、by endorsement, at the latest by July 2003, and conflicting national standards shall be withdrawn at the latest by July 2003. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Bel
18、gium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. 1 Scope This standard specifies the characteristics of self-locking shank nuts in FE-PA92H
19、T, silver plated on thread, for aerospace applications. Classification : 1 100 MPa 1) / 650 C 2) 2 Normative references ISO 5855-2Aerospace - MJ threads - Part 2 : Limit dimensions for bolts and nuts EN 2399Heat resisting steel FE-PA92-HT - Rm 900 MPa - Bars for forged bolts - D 25 mm - Aerospace se
20、ries 3) EN 2424Aerospace series - Marking of aerospace products EN 2786Aerospace series - Electrolytic silver plating of fasteners 4) EN 3004Aerospace series - Nuts, self-locking, MJ threads, in heat resisting steel FE-PA2601 (A286) - Classification : 1 100 MPa (at ambient temperature) / 650 C - Tec
21、hnical specification 4) EN 3639Aerospace series - Heat resisting alloy FE-PA2601 - Softened and cold worked - Wire for forged fasteners - D 15 mm - 900 MPa Rm 1100 MPa 4) 1) The strength class of the bolt concerned which can withstand the load at ambient temperature when tested at 100 % load without
22、 cracking or breaking of the nut. 2) Maximum test temperature of the parts 3) Published as AECMA Standard at the date of publication of this standard 4) Published as AECMA Prestandard at the date of publication of this standard Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 08:36:12 GMT+00:0
23、0 2006, Uncontrolled Copy, (c) BSI EN 4122:2003 (E) 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 Licensed Copy: sheffieldun she
24、ffieldun, na, Sat Nov 04 08:36:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 4122:2003 (E) 5 3.3 Surface treatment EN 2786 on thread only Thickness : - Thread MJ6 : 5m min. on thread flanks ; Thread MJ5 : shall show complete coverage, without thickness requirement. Coating may extend to counterbo
25、re and chamfers at manufacturers option, without thickness requirement. Key 1Values apply before silver plating. Thread surface will be as achieved by normal methods of manufacture. 2Not convex 3Chamfer or radius max. 0,08 4Thread 5Form-out-of-round in this area to achieve the self-locking requireme
26、nt (tooling marks permissible) 6Pitch diameter 7Making in these areas but not in locking area 8Remove sharp edges 0,1 to 0,4. Details of form not stated are left to the manufacturers discretion. 1) Limit of the blend radius Figure 1 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 08:36:12 GMT
27、+00:00 2006, Uncontrolled Copy, (c) BSI EN 4122:2003 (E) 6 Table 1 Thread *)CEHJLPSTZMass Kg/1 000 parts CodeDesignation 0,1 0,25H14 1 , 0 0 + Nom.Tol. 0 1 , 0 0,1 0,25max. 050MJ5x0,8-4H6H71375,26,59,58,52,7 060MJ6x1-4H5H81486,21,87,510,52,49,53,35 070MJ7x1-4H5H91697,22,8 0,10 8,511,53,410,54,16 080
28、MJ8x1-4H5H1017108,23,20,159,512,53,911,55,4 *) In accordance with ISO 5855-2. In the self-locking zone, the tolerances apply before forming out-of-round. 4 Designation EXAMPLE : Description blockIdentity block NUTEN4122 -050 Number of this standard Thread code (see table 1) NOTE: If necessary, the c
29、ode I9005 shall be placed between the description block and the identity block. 5 Marking EN 2424, style A, as indicated on figure 1. 6 Technical specification EN 3004 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 08:36:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldu
30、n sheffieldun, na, Sat Nov 04 08:36:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 4122:2003 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europ
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