1、CEN PREN*2414 93 3404589 0049411 3Tb AECMA STANDARD prEN 2414 NORME AECMA Edition P 1 AECMA NORM August 1993 DIT PAR LASSOCIATION EUROPCENNE DES CONSTRUCTEURS DE MATRIEL AROSPATIAL Technopolis - 175, rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cedex - Tl. (1 ) 47.36.98.76 UDC Descriptors
2、 : ENGLISH VERSION Aerospace series Washers, chamfered, with counterbore, in alloy steel, cadmium plated Srie arospatiale Rondelles, fraises, avec chambrage, en acier alli, cadmies Luft- und Raumfahrt Stulpschei ben, aus legiertem Stahl, verkadmet This “Aerospace Series“ Prestandard has been drawn u
3、p under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published on green paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned Technical Committee folio wing comment by the Member countries. Subsequ
4、ent 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. After examination and signature of the AECMA Standard Checking Centre (NPS) and formal agree
5、ment of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. Nota - Extra copies can be supplied by B.N.A.E. - Technopoiis 54 - 199, rue Jean-Jacques Rousseau - 92138 ISSY-LES-MOULINEAUX CEDEX
6、 Edition approved for publication 1993-08-31 C3 Chairman Mr. Arena Comments should be sent within six months after the date of publication to AECMA Technopolis - 175, rue Jean-Jacques Rousseau 921 38 Issy-les-Moulineaux Cedex - FRANCE aecma 199 A Copyright Association Europeene des Constructeurs de
7、Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEN PREN+2414 93 W 3404589 0049432 232 prEN 2414 Page 3 1 Scope This standard specifies the characteristics of chamfered washers, with counterbore, in alloy
8、 steel, cadmium plated, for maximum operating temperature 235 OC. 2 Normative references EN 2000 Aerospace series - Quality assurance - EN aerospace products - Approval of the quality system of manufacturers Cadmium plating of steels with maximum specified tensile strength equal to or less than 1 45
9、0 MPa and copper and copper alloys - Aerospace series 1) Steel FE-PL43 S - 900 MPa I R, I 1 100 MPa - Bars De I 40 mm - Aerospace series 1) Aerospace series - Identification marking of standard fasteners l) Steel FE-PL62 - 900 MPa I R, I 1 100 MPa - Bars De I 40 mm - Aerospace series 1) Steel FE-PL7
10、11 - 900 MPa I R, 5 1 100 MPa - Bars and wires De I 45 mm - Aerospace series 1) EN 2133 EN 2205 EN 2424 EN 2438 EN 2444 3 Required characteristics 3.1 Configuration - Dimensions - Masses See figure 1 and table 1. Dimensions asid tolerances are expressed in millimetres. They apply after surface treat
11、ment. 3.2 Material EN 2205, EN 2438 or EN 2444 3.3 Surface treatment EN 2133, 7 pm to 10 pm on all surfaces which can be contacted by a 20 mm diameter ball. On all other surfaces, a continuous deposit shall be present, but no value is specified. 1 ) Published as AECMA Standard at the date of publica
12、tion of this standard Previous page is blank Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEN PREN*2414 93 3404589 0049413 179 prEN 2414 Page 4 6;*/
13、3r3 Vatues in micrometres apply prior to surface treatment. Remove sharp edges 0,l to 0,4 Thick. series : 4 R 0.6 2 0,l 45“ 2 1“ Figure 1 + 0,2 0 1) Thickness code (see figure 1) 2) Approximate values (kg/l000 pieces), calculated on the basis of 7,85 kg/drn3, given for information purposes only Copy
14、right Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEN PRENWLY 93 m 30589 OOYSW o05 m prEN 2414 Page 5 4 Designation EXAMPLE : Description block Identity bloc
15、k WASHER EN2414A080 Number of this standard Thickness code (see figure 1) Diameter code (see table 1) I NOTE : If necessary, the code 19005 shall be placed between the description block and the identity block. 5 Marking EN 2424, style G, plus quantity (mass or number) 6 Quality assurance EN 2000 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
