1、BRITISH STANDARD AEROSPACE SERIES BS EN 4494:2006 Rings, split, in stainless steel The European Standard EN 4494:2006 has the status of a British Standard ICS 49.030.50 BS EN 4494:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2
2、006 BSI 2006 ISBN 0 580 48533 1 National foreword This British Standard is the official English language version of EN 4494:2006. The UK participation in its preparation was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems, which has the responsibility to: aid enqui
3、rers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations repres
4、ented on this committee 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 entitled “International Standards Correspondence Index”,
5、 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. Compliance with a British Standard does not of itself confer
6、immunity from legal obligations. 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 notice displayed in this document indicates when the document was last issued. Amendments issued s
7、ince publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN4494 June2006 ICS49.030.50 EnglishVersion AerospaceseriesRings,split,instainlesssteel SriearospatialeAnneauxressorts,enacierinoxydable LuftundRaumfahrtSprengringe,ausrostfreierStahl ThisEuropeanStandardwasapprove
8、dbyCENon6February2006. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCe
9、ntralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenatio
10、nalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Romania, Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDAR
11、DIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2006CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN4494:2006:EEN 4494:2006 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4
12、3 Required characteristics.4 4 Designation 6 5 Marking .6 6 Quality assurance6 EN 4494:2006 3 Foreword This European Standard (EN 4494:2006) has been prepared by the European Association of Aerospace Manufacturers - Standardization (AECMA-STAN). After enquiries and votes carried out in accordance wi
13、th 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, either by publication of an id
14、entical text or by endorsement, at the latest by December 2006, and conflicting national standards shall be withdrawn at the latest by December 2006. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be
15、held responsible for identifying any or all such patent rights. 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, Franc
16、e, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. 4 1 Scope This standard specifies the characteristics of split rings, for use in aerospac
17、e applications. 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. EN 2424, A
18、erospace series Marking of aerospace products. EN 2541, Aerospace series Steel FE-PA18 Quenched and cold drawn Wire for spring D 4,0 mm. 1)EN 9100, Aerospace series Quality management systems Requirements (based on ISO 9001:2000) and Quality systems Model for quality assurance in design, development
19、, production, installation and servicing (based on ISO 9001:1994). 3 Required characteristics 3.1 Configuration Dimensions Masses See Figure 1 and Table 1. Dimensions and tolerances are expressed in millimetres and apply after surface treatment. 3.2 Material EN 2541, annealed 3.3 Surface treatment B
20、right polished 1) Published as AECMA Prestandard at the date of publication of this standard. EN 4494:20065 Key 1 Remove sharp edges. 2 Rounded section Figure 1 Table 1 D 1D 2E Diameter code max. min. max. min. max. min. Mass a 080 11,5 9,5 13,5 11,7 1,95 1,35 0,60 100 14,3 12,5 16,8 15,2 2,65 1,95
21、1,20 120 17,5 15,5 20,5 18,2 3,05 2,15 1,60 140 19,8 18,2 22,8 21,2 3,15 2,55 2,01 160 22,2 20,5 26,3 24,5 3,65 2,95 2,91 240 34,8 33,2 38,8 37,2 3,85 3,35 6,30 320 46 43,6 51,5 49,2 5,35 4,55 16,90 aApproximate values (kg/1 000 pieces), calculated on the basis of 7,85 kg/dm 3 , given for informatio
22、n purposes only EN 4494:20066 4 Designation EXAMPLE Description block SPLIT RING Identity block EN4494-080 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 G 6 Quality
23、assurance See EN 9100. EN 4494:2006 blankBS EN 4494:2006 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 Europe and at the international level. It is i
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