EN 4122-2004 en Aerospace series - Shank nuts self-locking in heat resisting steel FE-PA2601 (A286) silver plated on thread - Classification 1 100 MPa (at ambient temperature) 650.pdf

1、BRITISH STANDARD AEROSPACE SERIES BS EN 4122:2004 Shank nuts, self-locking, in heat resisting steel FE-PA2601 (A286), silver plated on thread Classification: 1 100 MPa (at ambient temperature)/650 C The European Standard EN 4122:2004 has the status of a British Standard ICS 49.030.30 BS EN 4122:2004

2、 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 15 December 2004 BSI 15 December 2004 ISBN 0 580 45096 1 National foreword This British Standard is the official English language version of EN 4122:2004. It supersedes BS EN 4122:2003, which i

3、s withdrawn. The UK participation in its preparation was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The Britis

4、h Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Onlin

5、e. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsibl

6、e international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, t

7、he EN title page, pages 2 to 6, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4122 November 2004 I

8、CS 49.030.30 Supersedes EN 4122:2003 English version Aerospace series - Shank nuts, self-locking, in heat resisting steel FE-PA2601 (A286), silver plated on thread - Classification: 1 100 MPa (at ambient temperature) / 650 C Srie arospatiale - crous sertir, freinage interne, en acier rsistant chaud

9、FE-PA2601 (A286), argents sur filetage - Classification : 1 100 MPa ( temprature ambiante ) / 650 C Luft- und Raumfahrt - Einnietmuttern, selbstsichernd, aus hochwarmfestem Stahl FE-PA2601 (A286), Gewinde versilbert - Klasse: 1 100 MPa (bei Raumtemperatur) / 650 C This European Standard was approved

10、 by CEN on 11 September 2003. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate 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

11、standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists 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 notifie

12、d to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherland

13、s, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2004 CEN All rights of exploitation in any form

14、and by any means reserved worldwide for CEN national Members. Ref. No. EN 4122:2004: E EN 4122:2004 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Required characteristics.4 4 Designation 6 5 Marking .6 6 Technical specification .6 EN 4122:2004 (E) 3 Foreword This document (EN 41

15、22:2004) 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 this Association, this Standard has received the approval of the National Associations and the Official Services of

16、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 by endorsement, at the latest by May 2005, and conflicting national standards shall be withdrawn at the latest by Ma

17、y 2005. This document supersedes EN 4122:2003. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greec

18、e, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 4122:2004 (E) 4 1 Scope This standard specifies the characteristics of self-locking shank nuts in FE-PA2601, sil

19、ver plated on thread, for aerospace applications. Classification: 1 100 MPa 1)/ 650 C 2)2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition o

20、f the referenced document (including any amendments) applies. ISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts EN 2399, Heat resisting steel FE-PA92-HT R m 900 MPa Bar for forged bolts D 25 mm Aerospace series 3)EN 2424, Aerospace series Marking of aerospace products EN 2

21、786, Aerospace series Electrolytic silver plating of fasteners 4)EN 3004, Aerospace series Nuts, self-locking, MJ threads, in heat resisting steel FE-PA2601 (A286) Classification: 1 100 MPa (at ambient temperature) / 650 C Technical specification EN 3639, Aerospace series Heat resisting alloy FE-PA2

22、601 Softened and cold worked Wire for forged fasteners D 15 mm 900 MPa R m 1 100 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 for thread surface. 3.2 Materials E

23、N 2399 or EN 3639 3.3 Surface treatment EN 2786 on thread and chamfers Thickness: thread MJ6: 5 m min. on thread flanks; thread MJ5: shall show complete coverage, without thickness requirement. Coating may extend to counterbore and chamfers at manufacturers option, without thickness requirement. 1)

24、Correspond to the minimum tensile stress which the nut is able to withstand at ambient temperature without breaking 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) P

25、ublished as AECMA Prestandard at the date of publication of this standard EN 4122:2004 (E) 5 Key 1 values applicable before silver plating. Thread surface will be as achieved by normal methods of manufacture. 2 remove sharp edges 0,1 to 0,4. 3 not convex 4 chamfer or radius 0,08 max. 5 thread 6 form

26、 out-of-round in this area to achieve the self-locking requirement (tooling marks permissible). 7 pitch diameter 8 marking in these areas but not in locking area Details of form not stated are left to the manufacturers discretion. aLimit of the blend radius Figure 1 EN 4122:2004 (E) 6 Table 1 Thread

27、 aC E H J L P S T Z Code Designation 0,1 0,25 h14 + 0,1 0 nom. Tol. 0 0,1 0,1 0,25max. Mass kg/1 000 parts 050 MJ50,8-4H6H 7 13 7 5,2 6,5 9,5 8,5 2,7 060 MJ61-4H5H 8 14 8 6,2 1,8 7,5 10,5 2,4 9,5 3,35 070 MJ71-4H5H 9 16 9 7,2 2,8 0,10 8,5 11,5 3,4 10,5 4,16 080 MJ81-4H5H 10 17 10 8,2 3,2 0,15 9,5 12

28、,5 3,9 11,5 5,4 aIn accordance with ISO 5855-2. In the self-locking zone, the tolerances apply before forming out-of-round. 4 Designation EXAMPLE Description block NUT Identity block EN4122-050 Number of this standard Thread code (see Table 1) NOTE If necessary, the code I9005 shall be placed betwee

29、n the description block and the identity block. 5 Marking EN 2424, style A, as indicated on Figure 1. 6 Technical specification EN 3004 blankBS EN 4122:2004 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing Briti

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