1、BRITISH STANDARD AEROSPACE SERIES BS EN 3831:2004 Inserts, thickwall, self-locking, MJ threads, in heat resisting steel FE-PM3801 (17-4PH), MoS 2coated The European Standard EN 3831:2004 has the status of a British Standard ICS 49.030.30 BS EN 3831:2004 This British Standard was published under the
2、authority of the Standards Policy and Strategy Committee on 24 December 2004 BSI 24 December 2004 ISBN 0 580 45180 1 National foreword This British Standard is the official English language version of EN 3831:2004. It supersedes BS EN 3831:2003 which is withdrawn. The UK participation in its prepara
3、tion 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 British Standards which implement international or Eur
4、opean 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 Online. This publication does not purport to include
5、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 responsible international/European committee any enquiries
6、 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, the EN title page, pages 2 to 6, an inside back c
7、over 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 3831 November 2004 ICS 49.030.30 Supersedes EN 3831:2003 English ver
8、sion Aerospace series - Inserts, thickwall, self-locking, MJ threads, in heat resisting steel FE-PM3801 (17-4PH), MoS2 coated Srie arospatiale - Douilles filetes, paroi renforce, freinage interne, filetage MJ, en acier rsistant chaud FE-PM3801 (17-4PH), revtues MoS2 Luft- und Raumfahrt - Gewindeeins
9、tze, dickwandig, selbstsichernd, MJ-Gewinde, aus hochwarmfestem Stahl FE-PM3801 (17-4PH), MoS2-beschichtet This European Standard was approved 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 Europea
10、n 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 exists in three official versions (English, F
11、rench, 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 bodies of Austria, Belgium, Cyprus, Czech Re
12、public, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMAL
13、ISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2004 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3831:2004: E EN 3831:2004 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative refere
14、nces 4 3 Required characteristics.4 4 Insert definition5 5 Designation 6 6 Marking .6 7 Technical specification .6 EN 3831:2004 (E) 3 Foreword This document (EN 3831:2004) has been prepared by the European Association of Aerospace Manufacturers - Standardization (AECMA-STAN). After enquiries and vot
15、es 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 the member countries of AECMA, prior to its presentation to CEN. This European Standard shall be given the status of a national standard,
16、 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 May 2005. This document supersedes EN 3831:2003. According to the CEN/CENELEC Internal Regulations, the national standards organizations of
17、 the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spa
18、in, Sweden, Switzerland and United Kingdom. EN 3831:2004 (E) 4 1 Scope This standard specifies the characteristics of self-locking, thickwall inserts with MJ threads, in FE-PM3801, MoS 2coated, for aerospace applications. Maximum test temperature: 350 C For design and installation procedures see EN
19、4014 and EN 4015. 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 of the referenced document (including any amendments) applies. ISO 5855
20、-1, Aerospace MJ threads Part 1: General requirements ISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts EN 2424, Aerospace series Marking of aerospace products EN 2491, Aerospace series Molybdenum disulphide dry lubricants Coating methods EN 3899, Aerospace series Inserts,
21、 thickwall, self-locking, MJ threads, in heat resisting steel FE-PM3801 (17-4PH) Technical specification EN 3906, Aerospace series Martensitic corrosion resisting steel FE-PM3801 Air melted Solution treated Bar D 50 mm For the manufacture of fasteners 1 100 MPa R m 1 300 MPa 1)EN 4014, Aerospace ser
22、ies Inserts, thickwall, self-locking Design standardEN 4015, Aerospace series Inserts, thickwall, self-locking Installation and removal procedureTR 3198, Aerospace series Manufacturers identification monograms and marks for EN aerospace products2)3 Required characteristics 3.1 Configuration Dimensio
23、ns Tolerances Masses See Figure 1 and Tables 1 and 2. Dimensions and tolerances are in millimetres. They apply before MoS 2coating. 3.2 Material EN 3906 3.3 Surface treatment EN 2491 1) Published as AECMA Prestandard at the date of publication of this standard 2) Published as AECMA Technical Report
24、at the date of publication of this standard EN 3831:2004 (E) 5 4 Insert definition Values apply before MoS 2coating. Remove sharp edges 0,1 to 0,2. Key 1 knurl across thread to produce J number of serration 2 form out-of-round in this area to achieve the self-locking requirement (tooling marks permi
25、ssible). 3 pitch diameter Details of form not stated are left to the manufacturers discretion. Figure 1 4.1 Nominal size insert See Table 1. Table 1 A Internal thread aB External thread b C D E FG J LM cMass kg/1 000 parts Code Designation Designation + 0,2 0 0,3 0,2 0,3 max.min.max. 050-0 MJ50,8-4H
26、6H MJ81-4h6h 6 7,6 3 2,3 24 5,1 6,5 0,9 060-0 MJ61-4H5H MJ91-4h6h 7 8,9 3,2 2,4 27 5,8 7,5 1,4 070-0 MJ71-4H5H MJ101-4h6h 8 10,9 3,6 2,7 28 7,3 8,5 2 080-0 MJ81-4H5H MJ111-4h6h 9 12,9 4 2,9 32 9 9,5 2,6 100-0 MJ101,25-4H5H MJS131-4h6h 11 16,2 4,7 3,3 0,3 37 11,5 11,5 4,5 aIn accordance with ISO 5855
27、-2 bIn accordance with ISO 5855-1 cAfter deformation EN 3831:2004 (E) 6 4.2 Repair size insert See Table 2. Table 2 A Internal thread aB External thread bC D E FG J LM cMass kg/1 000 parts Code Designation Designation + 0,2 0 0,3 0,2 0,3 max.min.max. 050-1 MJ50,8-4H6H MJ91-4h6h 7 7,6 3,2 2,4 27 4,8
28、6,5 1,5 060-1 MJ61-4H5H MJ101-4h6h 8 8,9 3,6 2,7 28 5,5 7,5 2 070-1 MJ71-4H5H MJ111-4h6h 9 10,9 4 2,9 32 7 8,5 3 080-1 MJ81-4H5H MJ121-4h6h 10 12,9 4,7 3,3 33 8,6 9,5 3,8 100-1 MJ101,25-4H5H MJ141-4h6h 12 16,2 5,2 3,5 0,3 40 11,1 11,5 6,3 aIn accordance with ISO 5855-2 bIn accordance with ISO 5855-1
29、 cAfter deformation 5 Designation EXAMPLE Description block INSERT THICKWALL Identity block EN3831-050-1 Number of this standard Thread code (see Tables 1 and 2) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. 6 Marking EN 2424, style G Manufac
30、turers identification marks in accordance with the list for special identification marks in TR 3198 7 Technical specification EN 3899 blankBS EN 3831:2004 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British
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