1、BRITISH STANDARD AEROSPACE SERIESBS EN 4590:2005Retainers, spring, sheet metal, for self-locking barrel nuts, in corrosion resisting steel, passivatedThe European Standard EN 4590:2005 has the status of a British StandardICS 49.030.30g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g
2、51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 4590:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2006 BSI 31 January 2006ISBN 0 580
3、 47215 9National forewordThis British Standard is the official English language version of EN 4590:2005. 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 represente
4、d on this committee can be obtained on request to its secretary.Cross-referencesThe 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”, or by
5、 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 immunit
6、y 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 UK interests informed; monitor related international and European developments and promulgate them in the
7、 UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 7 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDAR
8、DNORME EUROPENNEEUROPISCHE NORMEN 4590December 2005ICS 49.030.30English VersionAerospace series - Retainers, spring, sheet metal, for self-locking barrel nuts, in corrosion resisting steel, passivatedSrie arospatiale - Ressorts de retenue en tle pourcrous portes cylindrique, freinage interne, en aci
9、errsistant la corrosion, passivsLuft- und Raumfahrt - Blechsicherungsfedern frselbstsichernde Tonnenmuttern, auskorrosionsbestndigem Stahl, passiviertThis European Standard was approved by CEN on 26 October 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulat
10、e the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists i
11、n three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of
12、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, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARD
13、IZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 4590:2005: E2 Contents Page Foreword 3 1 Scope .4 2 Normat
14、ive references .4 3 Required characteristics 5 4 Designation .7 5 Marking 7 6 Technical specification.7 EN 4590:20053 Foreword This European Standard (EN 4590:2005) has been prepared by the European Association of Aerospace Manufacturers - Standardization (AECMA-STAN). After enquiries and votes carr
15、ied 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, either
16、 by publication of an identical text or by endorsement, at the latest by June 2006, and conflicting national standards shall be withdrawn at the latest by June 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 CENEL
17、EC shall not be 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
18、, 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 4590:20054 1 Scope This standard specifies the characteristics of sheet metal s
19、pring retainers in corrosion resisting steel, passivated, for use with self-locking barrel nuts EN 4591. 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
20、 latest edition of the referenced document (including any amendments) applies. ISO 5858, Aerospace Nuts, self-locking, with maximum operating temperature less than or equal to 425 C Procurement specification. ISO 8788, Aerospace Nuts, metric Tolerances of form and position. ISO 12280, Aerospace Reta
21、iners, spring, sheet metal, for self-locking barrel nuts Dimensions. EN 2424, Aerospace series Marking of aerospace products. EN 2516, Aerospace series Passivation of corrosion resisting steels and decontamination of nickel base alloys. EN 2540, Aerospace series Steel FE-PM3902 (X7CrNiAl17-7) Air me
22、lted Solution treated and precipitation hardened Sheet and strip a 6 mm 1 240 MPa Rm 1 450 MPa.1)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 4591, Aerospace ser
23、ies Nuts, barrel, self-locking, floating, self-aligning, in heat resisting nickel base alloy, MoS2lubricated Classification: 1 550 MPa (at ambient temperature) / 315 C.1)EN 9100, Aerospace series Quality management systems Requirements (based on ISO 9001:2000) and Quality systems Model for quality a
24、ssurance in design, development, production, installation and servicing (based on ISO 9001:1994). EN 9133, Aerospace series Quality management systems Qualification Procedure for aerospace standard parts. 1) Published as AECMA Prestandard at the date of publication of this standard. EN 4590:20055 3
25、Required characteristics 3.1 Configuration Dimensions Masses See Figure 1 and Table 1. Dimensions and tolerances are: in conformity with ISO 12280, expressed in millimetres and apply after surface treatment. Details of form not stated are at the manufacturers option. 3.2 Tolerances of form and posit
26、ion See ISO 8788 3.3 Materials See EN 2540 or EN 3638 3.4 Surface treatment See EN 2516, process class appropriate to the material EN 4590:20056 To burr. Index type Code A b Clearance type Code B c d Key 1 Barrel nut outline, shown for reference purposes. See companion nut standard EN 4591. 2 Markin
27、g aRetainers shall be supplied in the open position as shown by phantom lines. bIndex type retainers code “A“ are used in blind areas where index feature locates in hole to prevent rotation or vertical movement. cClearance type retainers code “B“ are used where nut is accessible or where bolt hole i
28、n far side of barrel cavity is undesirable. dCode “B“ type nut retainers and nut assembly shall require a push out force in accordance with tabulated values when installed in the installation hole specified in the companion barrel nut standard EN 4591. Figure 1 EN 4590:20057 Table 1 A B C D E F H S
29、T Push out force N Diameter code + 0,4 0 max. 0,8 0,8 min. max. + 0,4 0 min. min. min. Mass a 060 14 5,8 7 12 6,3 0,18 1 0,44 070 15 5,6 8 8 13 7,3 0,20 1,1 0,49 080 17 6,3 9 9 14 8,3 1,2 0,55 100 20 7,4 11 3 11 17 10,3 0,22 1,4 0,78120 24 9,4 13 5 13 21 12,3 1,6 0,97 140 28 11,4 16 15 25 14,3 1,9 1
30、,17 160 32 13,6 19 17 29 16,3 2,2 1,36 180 36 14,7 22 19 31,5 18,3 2,5 2,90 200 40 16,7 25 21 35,5 20,3 0,3 2,7 3,20220 44 18,8 28 23 39,5 22,3 3 3,60 240 48 19,9 32 6 25 42,5 24,3 0,38 3,3 9 4,02 aApproximate values (kg/1 000 pieces), given for information purposes only. 4 Designation EXAMPLE Descr
31、iption block RETAINER Identity block EN4590A060 Number of this standard Type code (see Figure 1) 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 N. See Figure 1. 6 Technical specification See
32、 ISO 5858, except for: Approval of manufacturers: see EN 9100; Qualification of products: see EN 9133. EN 4590:2005BS EN 4590:2005BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK
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