1、BRITISH STANDARD AEROSPACE SERIES BS EN 4168:2004 Clips, spring tension, three parts Outer clips in heat resisting steel FE-PA2601 (A286) The European Standard EN 4168:2004 has the status of a British Standard ICS 49.080 BS EN 4168:2004 This British Standard was published under the authority of the
2、Standards Policy and Strategy Committee on 24 January 2005 BSI 24 January 2005 ISBN 0 580 45317 0 National foreword This British Standard is the official English language version of EN 4168:2004. It supersedes BS EN 4168:2003 which is withdrawn. The UK participation in its preparation was entrusted
3、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 European publications
4、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 all the necessary p
5、rovisions 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 on the interpretat
6、ion, 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 cover and a back cov
7、er. 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 4168 December 2004 ICS 49.080 Supersedes EN 4168:2003 English version Aerospace series
8、- Clips, spring tension, three parts - Outer clips in heat resisting steel FE-PA2601 (A286) Srie arospatiale - Colliers de fixation ressort en trois parties - Demi-colliers extrieurs, en acier rsistant chaud FE-PA2601 (A286) Luft- und Raumfahrt - Rohrschellen, federnd, dreiteilig - Auenschelle aus h
9、ochwarmfestem Stahl FE-PA2601 (A286) 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 European Standard the status of a national standard without any alteration. U
10、p-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, French, German). A version in any other language made by translation un
11、der 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 Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, I
12、celand, 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 NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stass
13、art, 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 4168:2004: EEN 4168:2004 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Required characteristics.4 4 Designation 6 5 Marking .6 6 Qual
14、ity assurance6 EN 4168:2004 (E) 3 Foreword This document (EN 4168:2004) 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 appr
15、oval 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 by endorsement, at the latest by June 2005, and confl
16、icting national standards shall be withdrawn at the latest by June 2005. This document supersedes EN 4168:2003. 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,
17、Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 4168:2004 (E) 4 1 Scope This standard specifies
18、 the characteristics of outer clips, three part clips, spring tension, in FE-PA2601 for applications at a maximum temperature of 260 C, for aerospace applications. They shall be assembled with parts from EN 4166 and EN 4167. 2 Normative references The following referenced documents are indispensable
19、 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. EN 2424, Aerospace series Marking of aerospace products EN 2516, Aerospace series Passivation of corr
20、osion resisting steels and decontamination of nickel base alloys EN 3638, Aerospace series Heat resisting alloy FE-PA2601 (X6NiCrTiMoV26-15) Consumable electrode remelted Solution and precipitation treated Sheet, strip and plate 0,5 mm a 10 mm 1)EN 4166, Aerospace series Clips, spring tension, three
21、 parts PTFE bushes EN 4167, Aerospace series Clips, spring tension, three parts Inner clips in heat resisting steel FE-PA2601 (A286) EN 9100, Aerospace series - Quality management systems - Requirements (based on ISO 9001:2000) and Quality systems - Model for quality assurance in design, development
22、, production, installation and servicing (based on ISO 9001:1994) 3 Required characteristics 3.1 Configuration Dimensions Tolerances Masses See Figure 1 and Table 1. Dimensions and tolerances are in millimetres. They apply after passivation. 3.2 Materials EN 3638 3.3 Surface treatment EN 2516 3.4 He
23、at treatment Precipitation heat treated after forming 3.5 Hardness 260 HV to 345 HV 1) Published as AECMA Prestandard at the date of publication of this standard EN 4168:2004 (E) 5 Key 1 break sharp edges 0,1 to 0,4 2 10,4 to 10,8 3 direction of grain 4 R = 1 to 1,5 5 1,5 to 2 6 marking 7 R = 2 to 2
24、,5 8 5,1 to 5,3 9 diameter 5,5 to 5,8 10 R = 7 to 9 11 view along L Figure 1 Table 1 A B C E G Mass kg/1 000 parts Diameter code max. min. max. min. max. min. max. min. max. min. 004 8,7 8,1 13,6 13,1 8,7 8,1 17 006 10,6 10 14,5 14 10,6 10 19 008 12,5 11,9 15,5 15 12,5 11,9 22 010 14,3 13,7 16,4 15,
25、9 14,3 13,7 0,9 0,7 45 35 24 012 16,7 15,7 17,8 17,3 16,5 15,9 35 014 18,5 17,5 18,7 17,7 18,3 17,7 55 45 39 016 20,3 19,3 19,6 18,6 20,1 19,5 45 018 22,1 21,1 20,5 20 21,9 21,3 44 020 24 23 21,5 21 23,8 23,2 53 025 28,3 27,3 24 23,5 28,1 27,5 62 032 35,3 34,3 27,5 27 35,1 34,5 1,1 0,9 65 55 78 EN 4
26、168:2004 (E) 6 4 Designation EXAMPLE Description block OUTER CLIP Identity block EN4168-012 Number of this standard Diameter code (see Table 1) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. 5 Marking EN 2424, style A, as indicated on Figure 1
27、. 6 Quality assurance The manufacturers quality systems shall conform to EN 9100. blankBS EN 4168:2004 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
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