1、BRITISH STANDARD AEROSPACE SERIESBS EN 4591:2005Nuts, barrel, self-locking, floating, self-aligning, in heat resisting nickel base alloy, MoS2 lubricated Classification: 1 550 MPa (at ambient temperature) / 315 CThe European Standard EN 4591:2005 has the status of a British StandardICS 49.030.30g49g
2、50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Fri Apr 14 07:34:04 BST 2006, Uncontrolled Copy, (c) BSIBS EN 4591:2005This
3、 British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2006 BSI 31 January 2006ISBN 0 580 47212 4National forewordThis British Standard is the official English language version of EN 4591:2005. The UK participation in its preparation was entr
4、usted 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-referencesThe British Standards which implement international or European publicati
5、ons 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 necessar
6、y 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 on the interpre
7、tation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the 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 noti
8、ce displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsLicensed Copy: Wang Bin, na, Fri Apr 14 07:34:04 BST 2006, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4591 December 2005 ICS 49.030.3
9、0 English Version Aerospace series - Nuts, barrel, self-locking, floating, self-aligning, in heat resisting nickel base alloy, MoS2 lubricated - Classification: 1 550 MPa (at ambient temperature) / 315 C Srie arospatiale - crous porte cylindrique, freinage interne, flottants, orientables, en alliage
10、 rsistant chaud base de nickel, lubrifis MoS2 - Classification : 1 550 MPa ( temprature ambiante) / 315 C Luft- und Raumfahrt - Selbsteinstellende, freibewegliche, selbstsichernde Tonnenmuttern, aus hochwarmfester Nickelbasislegierung, MoS2-geschmiert - Klasse: 1 550 Mpa (bei Raumtemperatur) / 315 C
11、 This European Standard was approved by CEN on 26 October 2005. 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 re
12、ferences 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 under the responsibility of a CEN member
13、 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, Iceland, Ireland, Italy, Latvia, Lithua
14、nia, 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 Stassart, 36 B-1050 Brussels 2005 CEN All r
15、ights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4591:2005: ELicensed Copy: Wang Bin, na, Fri Apr 14 07:34:04 BST 2006, Uncontrolled Copy, (c) BSI2 Contents Page Foreword 3 1 Scope .4 2 Normative references .4 3 Required characteristics 5 4
16、Designation .7 5 Marking 7 6 Technical specification.7 EN 4591:2005Licensed Copy: Wang Bin, na, Fri Apr 14 07:34:04 BST 2006, Uncontrolled Copy, (c) BSI3 Foreword This European Standard (EN 4591:2005) has been prepared by the European Association of Aerospace Manufacturers - Standardization (AECMA-S
17、TAN). 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 the member countries of AECMA, prior to its presentation to CEN. This European Standard shall be given the s
18、tatus of a national standard, either 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 subjec
19、t of patent rights. CEN and/or CENELEC 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, Cypr
20、us, 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 4591:2005Licensed Copy: Wang Bin, na, Fri A
21、pr 14 07:34:04 BST 2006, Uncontrolled Copy, (c) BSI4 1 Scope This standard specifies the characteristics of self-locking, floating, self-aligning barrel nuts, in heat resisting nickel alloy, MoS2lubricated. Classification: 1 550 MPa 1) / 315 C 2)2 Normative references The following referenced docume
22、nts 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 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts. IS
23、O 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 12278, Aerospace Nuts, barrel, self-locking, floating, self-aligning, with MJ thread, Classifications:
24、 900 MPa (at ambient temperature) / 235 C, 1 100 MPa (at ambient temperature) / 235 C, 1 250 MPa (at ambient temperature) / 235 C and 1 550 MPa (at ambient temperature) / 235 C Dimensions. EN 2424, Aerospace series Marking of aerospace products. EN 2491, Aerospace series Molybdenum disulphide dry lu
25、bricants Coating methods. EN 3666, Aerospace series Heat resisting alloy NI-PH2601 Solution treated and cold worked Bar for forged fasteners D 50 mm 1 550 MPa Rm 1 830 MPa.3)EN 9100, Aerospace series Quality management systems Requirements (based on ISO 9001:2000) and Quality systems Model for quali
26、ty assurance 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) Corresponds to the minimum tensile stress which the nut is able to withstand at ambient
27、temperature without breaking or cracking when tested with a bolt of a higher strength class. 2) Maximum temperature that the nut is able to withstand, without permanent alteration to its original characteristics, after ambient temperature has been restored. The maximum temperature is conditioned by
28、the surface treatment. 3) Published as AECMA Prestandard at the date of publication of this standard. EN 4591:2005Licensed Copy: Wang Bin, na, Fri Apr 14 07:34:04 BST 2006, Uncontrolled Copy, (c) BSI5 3 Required characteristics 3.1 Configuration Dimensions Masses See Figure 1 and Table 1. Dimensions
29、 and tolerances are: in conformity with ISO 12278 (except for temperature class), expressed in millimetres and apply before MoS2lubrication. Details of form not stated are at the manufacturers option. 3.2 Tolerances of form and position See ISO 8788 3.3 Material See EN 3666 3.4 Surface treatment See
30、 EN 2491, thickness not specified, mandatory on threads, optional on other surfaces EN 4591:2005Licensed Copy: Wang Bin, na, Fri Apr 14 07:34:04 BST 2006, Uncontrolled Copy, (c) BSI6 Remove sharp edges 0,1 to 0,4. Key 1 Marking 2 Thread element 3 Cradle aThese values in micrometres apply before surf
31、ace treatment. They do not apply to threads, punched holes or sheared edges the surface texture of which will be as achieved by usual manufacturing methods. bThread cForm out-of-round in this area to achieve the self-locking torque requirement. Tooling marks permissible in this area dMeans of retain
32、ing nut in cradle are manufacturers option providing envelope and performance requirements are met. eMinimum radial float: 0,4 Figure 1 a 3,2 6,3 EN 4591:2005Licensed Copy: Wang Bin, na, Fri Apr 14 07:34:04 BST 2006, Uncontrolled Copy, (c) BSI7 Table 1 F G H K N P T Diameter code Thread a0 0,1 0,25
33、max. max. 0 0,25+ 0,250 max. Installation hole size Mass b060 MJ61-4H5H 12,9 14 10,6 9,5 3,35 6,8 8,2 13 6,80 070 MJ71-4H5H 13,9 15 11,5 9,8 7,8 9,5 14 8,20 080 MJ81-4H5H 14,9 17 12 10,2 3,7 8,8 9,9 15 9,50 100 MJ101,25-4H5H 17,9 20 15 12,5 4,6 10,8 12 18 13,60 120 MJ121,25-4H5H 21,9 24 18,1 15,7 5,
34、7 12,8 14,2 22 37,20 140 MJ141,5-4H5H 25,9 28 22,2 17,2 6,5 14,8 16,5 26 63,50 160 MJ161,5-4H5H 29,9 32 25,7 19,5 7,55 16,8 18,6 30 81,70 180 MJ181,5-4H5H 32,9 36 26,2 22 8,45 18,8 20,8 33 104,30 200 MJ201,5-4H5H 36,9 40 29,3 25,5 9,6 20,8 23 37 150,00 220 MJ221,5-4H5H 40,9 44 32,1 26 10,35 22,8 25,
35、2 41 181,00 240 MJ242-4H5H 43,9 48 35 28,6 11,25 24,8 27,5 44 210,00 aIn accordance with ISO 5855-2. In the self-locking zone, the tolerances apply before forming out-of-round. bApproximate values (kg/1 000 pieces), given for information purposes only 4 Designation EXAMPLE Description block NUT Iden
36、tity block EN4591-060 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 N, see Figure 1. 6 Technical specification See ISO 5858, except for: Approval of manufacturers: s
37、ee EN 9100; Qualification of products: see EN 9133. EN 4591:2005Licensed Copy: Wang Bin, na, Fri Apr 14 07:34:04 BST 2006, Uncontrolled Copy, (c) BSIBS EN 4591:2005BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing Bri
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