1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 3672 Edition P 2 April 2015 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Rue Montoyer 10 - 1000 Brussels - Tel. 32 2 775 8126 - Fax. 32 2 775 8131 - www.asd-stan.org ICS: 49.030.30 Supersedes edition P 1
2、 of February 1998 and will supersede EN 3672:2008 Descriptors: ENGLISH VERSION Aerospace series Shank nuts, self-locking, in heat resisting nickel base alloy NI-P101HT (Waspaloy), silver plated, for 30 swage Classification: 1 210 MPa (at ambient temperature)/730 C Srie arospatiale crous sertir, frei
3、nage interne, en alliage rsistant chaud base de nickel NI-P101HT (Waspaloy), argents, pour sertissage 30 Classification: 1 210 MPa ( temprature ambiante)/730 C Luft- und Raumfahrt Einnietmuttern, selbstsichernd, aus hochwarmfester Nickelbasislegierung NI-P101HT (Waspaloy), versilbert, fr 30 Aufweitu
4、ng Klasse: 1 210 MPa (bei Raumtemperatur)/730 C This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It has been tec
5、hnically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. A
6、fter examination and review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at
7、 national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 1st April 2015 Comments should be sent within six months after the date of publication to ASD-STAN Mechanical Domain Copyright 2015 b
8、y ASD-STAN prEN 3672:2015 (E) 2 Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Required characteristics . 3 4 Designation 5 5 Marking . 5 6 Technical specification . 5 Annex A (informative) Standard evolution form . 6 Foreword This standard was reviewed by the Domain Technical Coordin
9、ator of ASD-STANs Mechanical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 3672:2015 (E) 3 1 Scope This standard specifies the characteristics of self-locki
10、ng shank nuts in NI-P101HT, silver plated, for use in 30 cone holes, for aerospace applications. Classification: 1 210 MPa 1)/730 C 2) 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated
11、 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 2786, Aerospace series Electrolytic silver plating of fasteners EN 2959, Aerospace series
12、Heat resisting alloy NI-PH1302 (NiCr20Co13Mo4Ti3Al), solution treated and cold worked Bar for forged fasteners 3 mm D 30 mm 3) EN 3005, Aerospace series Nuts, self-locking, MJ threads, in heat resisting nickel base alloy NI-PH1302 (Waspaloy), silver plated or uncoated Classification: 1 210 MPa (at a
13、mbient temperature)/730 C Technical specification EN 3220, Aerospace series Heat resisting nickel base alloy (Ni-P101 HT) Cold worked and softened Bar and wire for continuous forging or extrusion for fasteners 3 D 30 mm 3) ISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts
14、3 Required characteristics 3.1 Configuration, dimensions, tolerances, masses See Figure 1 and Table 1 and Table 2. Dimensions and tolerances are in millimetres. They apply after silver plating. 3.2 Material EN 2959 or EN 3220. 1) The strength class of the bolt concerned which can withstand the load
15、at ambient temperature when tested at 100 % load without cracking or breaking of the nut. 2) Maximum test temperature of the parts. 3) Published as ASD-STAN Prestandard at the date of publication of this standard. http:/www.asd-stan.org/ prEN 3672:2015 (E) 4 3.3 Surface treatment EN 2786 on thread,
16、counterbore and chamfers. Thickness: External surfaces: 5 m to 15 m; Thread MJ6: 5 m min. on thread flanks; Thread MJ5: shall show complete coverage, without thickness requirement. Values apply before silver plating. Thread surface will be as achieved by normal methods of manufacture. Remove sharp e
17、dges 0,1 mm to 0,4 mm Details of form not stated are left to the manufacturers discretion a Not convex b Pitch diameter c Thread d Form-out-round in this area to achieve the self-locking requirement (tooling marks permissible) e Chamfer or radius max. 0,08 f Limit of the blend radius g Marking in th
18、ese areas but not in locking area Figure 1 Shank nuts prEN 3672:2015 (E) 5 Table 1 Dimensions and masses, (not for new design) Thread a C E H J L P S T Z Mass 1 000 pieces kg Code Designation 0,1 0,25 h14 0,1 0 0,1 0 0 0,1 0,1 0,25 max. 050 MJ5 0,8-4H6H 7 13 7 5,2 2,6 6,5 9,5 3,2 8,5 2,77 060 MJ6 1-
19、4H5H 8 14 8 6,2 2,9 7,5 10,5 3,5 9,5 3,47 070 MJ7 1-4H5H 9 16 9 7,2 3,1 8,5 11,5 3,7 10,5 4,2 080 MJ8 1-4H5H 10 17 10 8,2 3,3 9,5 12,5 4 11,5 5,41 a In accordance with ISO 5855-2. In the self-locking zone, the tolerances apply before forming out-of-round. Table 2 Dimensions and masses Thread a C E H
20、 J L P S T Z Mass 1 000 pieces kg Code Designation 0,1 0,25 h14 0,1 0 nom. Tol. 0 0,3 0,1 0,25 max. 051 MJ5 0,8-4H6H 7 13 7 5,2 1,8 0,1 6,5 9,5 2,4 8,5 2,78 061 MJ6 1-4H5H 8 14 8 6,2 7,5 10,5 9,5 3,45 071 MJ7 1-4H5H 9 16 9 7,2 2,8 8,5 11,5 3,4 10,5 4,28 081 MJ8 1-4H5H 10 17 10 8,2 3,2 0,15 9,5 12,5
21、3,9 11,5 5,56 a In accordance with ISO 5855-2. In the self-locking zone, the tolerances apply before forming out-of-round. 4 Designation EXAMPLE Description block NUT Identity block EN3672-051 Number of this standard Thread code (see Table 1 and Table 2) If necessary the originator code I9005 shall
22、be placed between the description block and the identity block. 5 Marking EN 2424, Style A, as indicated in Figure 1. 6 Technical specification According to EN 3005. prEN 3672:2015 (E) 6 Annex A (informative) Standard evolution form The main changes with respect to the previous edition are listed in Table A.1. Table A.1 Main changes to previous edition prEN/EN Number Edition Publication Date Modification Reason and validation prEN 3672 P1 02/1998 Table 1 is not valid for new design New Table 2 for new design
