1、Aerospace series - Quick release fastening systems for non-structural and lining applicationsPart 05: Retaining washerBS EN 4702-05:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4702-05 October 2017 ICS 49.03
2、5 English Version Aerospace series - Quick release fastening systems for non-structural and lining applications - Part 05: Retaining washer Srie arospatiale - Fixations rapides filetes pour applications non-structurales et revtements intrieurs - Partie 05 : Rondelle de maintiene Luft- und Raumfahrt
3、- Schnellverschlusssysteme fr nicht-strukturelle und Innenausstattungsanwendungen - Teil 05: Haltescheibe This European Standard was approved by CEN on 23 July 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Stan
4、dard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (Englis
5、h, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bu
6、lgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switz
7、erland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN nationa
8、l Members. Ref. No. EN 4702-05:2017 ENational forewordThis British Standard is the UK implementation of EN 4702-05:2017.The UK participation in its preparation was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems.A list of organizations represented on this committee
9、 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 98239 2ICS 49.035Compl
10、iance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 4702-05:2017EUR
11、OPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4702-05 October 2017 ICS 49.035 English Version Aerospace series - Quick release fastening systems for non-structural and lining applications - Part 05: Retaining washer Srie arospatiale - Fixations rapides filetes pour applications non-structurales
12、et revtements intrieurs - Partie 05 : Rondelle de maintiene Luft- und Raumfahrt - Schnellverschlusssysteme fr nicht-strukturelle und Innenausstattungsanwendungen - Teil 05: Haltescheibe This European Standard was approved by CEN on 23 July 2017. CEN members are bound to comply with the CEN/CENELEC I
13、nternal 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 references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to
14、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 into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official
15、 versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Nor
16、way, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights
17、 of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4702-05:2017 EBS EN 4702-05:2017EN 4702-05:2017 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Requirements . 5 3.1 Configuration, dimensions, tolerances and mass 5
18、3.2 Material and surface treatment . 6 3.3 Colour 7 4 Designation 7 5 Marking . 7 6 Quality assurance 7 6.1 Supplier certification . 7 6.2 Product qualification . 7 7 Technical Specification . 8 Annex A (normative) Material . 9 Bibliography . 11 BS EN 4702-05:2017EN 4702-05:2017 (E) 3 European forew
19、ord This document (EN 4702-05:2017) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this European Standard has received the approval of the National A
20、ssociations and the Official Services of the member countries of ASD, 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 April 2018, and conflicting national standar
21、ds shall be withdrawn at the latest by April 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations,
22、 the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, La
23、tvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 4702-05:2017EN 4702-05:2017 (E) 4 1 Scope The standard specifies the dimensions, mass tolerances of quick-release and locki
24、ng washers for use in fuselage interior equipment and non-structural or secondary structural area. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edit
25、ion 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 4710-01, Aerospace series Quick release fastening systems for non-structural applications Part 01: Technical specifi
26、cation EN 10088-2, Stainless steels Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes EN 22768-1:1993, General tolerances Part 1: Tolerances for linear and angular dimensions without individual tolerance indications (ISO 2768-1:1989) E
27、N 22768-2:1993, General tolerances Part 2: Geometrical tolerances for features without individual tolerance indications (ISO 2768-2:1989) EN 62631-3-2, Dielectric and resistive properties of solid insulating materials Part 3-2: Determination of resistive properties (DC Methods) Surface resistance an
28、d surface resistivity (IEC 62631-3-2) EN ISO 62, Plastics Determination of water absorption (ISO 62) EN ISO 75-1, Plastics Determination of temperature of deflection under load Part 1: General test method (ISO 75-1) EN ISO 75-2, Plastics Determination of temperature of deflection under load Part 2:
29、Plastics and ebonite (ISO 75-2) EN ISO 178, Plastics Determination of flexural properties (ISO 178) EN ISO 179-1, Plastics Determination of Charpy impact properties Part 1: Non-instrumented impact test (ISO 179-1) EN ISO 180, Plastics Determination of Izod impact strength (ISO 180) EN ISO 307, Plast
30、ics Polyamides Determination of viscosity number (ISO 307) EN ISO 527-1, Plastics Determination of tensile properties Part 1: General principles (ISO 527-1) EN ISO 527-2, Plastics Determination of tensile properties Part 2: Test conditions for moulding and extrusion plastics (ISO 527-2) EN ISO 899-1
31、, Plastics Determination of creep behaviour Part 1: Tensile creep (ISO 899-1) EN ISO 1043-1, Plastics Symbols and abbreviated terms Part 1: Basic polymers and their special characteristics (ISO 1043-1) BS EN 4702-05:2017EN 4702-05:2017 (E) 5 EN ISO 1133-1, Plastics Determination of the melt mass-flo
32、w rate (MFR) and melt volume-flow rate (MVR) of thermoplastics Part 1: Standard method (ISO 1133-1) EN ISO 1183-1, Plastics Methods for determining the density of non-cellular plastics Part 1: Immersion method, liquid pyknometer method and titration method (ISO 1183-1) EN ISO 8497, Thermal insulatio
33、n Determination of steady-state thermal transmission properties of thermal insulation for circular pipes (ISO 8497) EN ISO 11357-2, Plastics Differential scanning calorimetry (DSC) Part 2: Determination of glass transition temperature and glass transition step height (ISO 11357-2) ISO 11359-1, Plast
34、ics Thermomechanical analysis (TMA) Part 1: General principles ISO 11359-2, Plastics Thermomechanical analysis (TMA) Part 2: Determination of coefficient of linear thermal expansion and glass transition temperature IEC 60250, Recommended methods for the determination of the permittivity and dielectr
35、ic dissipation factor of electrical insulating materials at power, audio and radio frequencies including metre wavelengths 3 Requirements 3.1 Configuration, dimensions, tolerances and mass The configuration, dimensions, tolerances and mass shall confirm with Figure 1 and Table 1. Tolerances not spec
36、ified, shall be in accordance with ISO 2768-mK (EN 22768-1:1993 and EN 22768-2:1993). Missing dimensions are left to manufacturers option. The applicable temperature range is 55 C to 85 C. BS EN 4702-05:2017EN 4702-05:2017 (E) 6 A) Type A B) Type B Key T thickness D diameter 1 marking Figure 1 Retai
37、ning washer Table 1 Dimension and mass Type code Size code T D Mass mm mm g A 14 0,35 14 0,34 B 18 1 0,15 18 0,22 B 20 20 0,31 B 25 25 0,50 3.2 Material and surface treatment Materials shall be in accordance with Table 2. Table 2 Material Type code Material Colour A Corrosion resistant steel (1.4310
38、, according to EN 10088-2) blank B PA 66 See Table 3 BS EN 4702-05:2017EN 4702-05:2017 (E) 7 3.3 Colour Colour codes are shown in Table 3. Table 3 Colour Colour code Colour RAL G Clean white 9010 H Deep black 9005 4 Designation EXAMPLE 5 Marking Marking shall be in accordance with EN 2424, Style F.
39、6 Quality assurance 6.1 Supplier certification The manufacturers operations shall be an approved production organization for aerospace products and shall demonstrate that it has implemented and is able to maintain a quality system (e.g. according to EN 9100 or another in aerospace accepted and estab
40、lished quality management system). 6.2 Product qualification The technical requirements for the product standard qualification are listed in EN 4710-01. The product qualification shall be performed to the process as defined in e.g. EN 9133 to achieve a qualification approval from the controlling Cer
41、tification Authority (CA). BS EN 4702-05:2017EN 4702-05:2017 (E) 8 7 Technical Specification Required tests for acceptance and qualification shall be in accordance to Table 4 and EN 4710-01. Table 4 Requirements, inspections and tests Characteristic Requirements Requirements according to EN 4710-01
42、Inspections and tests according to EN 4710-01 AaQbMaterials In accordance with the specifications of the relevant product standards 4.1 5.4.1 X X Dimensions and masses In accordance with the relevant product standards 4.2 5.4.2 X X Surface defects According to EN 4710-01 4.3.1 5.4.3.1 X X Burning be
43、haviour According to EN 4710-01 4.6.1 5.4.6.1 X Identification marking of the package According to EN 4710-01 4.8.2 5.4.8.2 X X aAcceptance test. bQualification test. BS EN 4702-05:2017EN 4702-05:2017 (E) 9 Annex A (normative) Material Characteristics of Polyamid (PA) 66 are shown in Table A.1. Tabl
44、e A.1 Polyamid (PA) 66 Unit Test specification Condition Value Symbol EN ISO 1043-1 PA66 Density g/cm3EN ISO 1183-1 1,13 Viscosity number (solution 0,005 g sulfuric acid/ml) ml/g EN ISO 307 150 Water absorption, saturation in water at 23 C % EN ISO 62 8 9 Moisture absorption saturation in standard c
45、onditions atmosphere 23 C / 50 % relative humidity % EN ISO 62 2,5 3,1 Melting point C EN ISO 11357-2 260 Melt volume rate cm3/10 min EN ISO 1133-1 115 Tensile modulus of elasticity MPa EN ISO 527-1 EN ISO 527-2 dry / conditioned 3 100/1 100 Stress at yield (v = 50 mm/min) MPa EN ISO 527-1 EN ISO 52
46、7-2 dry / conditioned 85/50 Elongation at yield (v = 50 mm/min) % EN ISO 527-1 EN ISO 527-2 dry / conditioned 5/20 Tensile creep modulus, 1 000 h, elongation 0,5 %, +23 C MPa EN ISO 899-1 conditioned 700 Flexural modulus MPa EN ISO 178 dry / conditioned 2 900/- Charpy notched impact strength +23 C k
47、J/m2EN ISO 179-1 eA dry / conditioned 5/20 Charpy notched impact strength 30 C kJ/m2EN ISO 179-1 eA dry 4 Izod notched impact strength A +23 C kJ/m2EN ISO 180 /A dry / conditioned 5,5/N Izod notched impact strength A 30 C kJ/m2EN ISO 180 /A dry 6 Heat distortion temperature under 1,8 MPa load C EN I
48、SO 75-1 EN ISO 75-2 75 BS EN 4702-05:2017EN 4702-05:2017 (E) 10 Unit Test specification Condition Value Heat distortion temperature under 0,45 MPa load C EN ISO 75-1 EN ISO 75-2 220 Coefficient of linear expansion, (23 C 80 C) 104/K ISO 11359-1 ISO 11359-2 0,7 1 Thermal conductivity W/(mk) EN ISO 84
49、97 0,33 Dielectric constant at 1 MHz IEC 60250 dry / conditioned 3,2/5 Dissipation factor at 1 MHz 104 IEC 60250 dry / conditioned 250/2 000 Volume resistivity m EN 62631-3-2 dry / conditioned 1 013/1 010 Surface resistivity EN 62631-3-2 conditioned 1 010 BS EN 4702-05:2017EN 4702-05:2017 (E) 11 Bibliography 1 EN 9100, Quality Management Systems - Requirements for Aviation, Space and Defense Organizations 2 E
