1、 AECMA STANDARD NORME AECMA AECMA NORM prEN 2371 Edition 2 April 1994 DITE PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATRIEL AROSPATIAL Technopolis - 175, rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cedex - Tl. (1 i 47.36.98.76 Supersedes Edition 1 November 1983 ENGLISH VERSION Nut
2、s, hexagon, steel, cadmium plated, left hand thread Aerospace series Classification : 1 1 O0 MPa1235 OC crous hexagonaux, en acier, cadmis, filetage gauche Srie arospatiale Classification : 1 100 MPa1235 OC Luft- und Raumfahrt Sechskantmuttern, aus Stahl, verkadmet, mit Linksgewinde Klasse : 1 100 M
3、Pa/235 OC This industrial standard for the a (Association Europenne des Cons It will be submitted to CEM AECMA Replace page 1 of the previous edition by this page Declassification approved 1994-04-29 The equivalent versions in French and German languages can be supplied by E.N.A.E. - Technopolis 54
4、- 199, rue Jean-Jacques Rousseau 921 38 ISSY - LES - MOULINEAUX CEDEX - FRANCE aecma 1991 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-,-,-. AECMA PREN2
5、3 prEN2371 Page 2 Contents 1 Scope 2 Field of application 3 References 4 Materials and surfaces treatments 5 Required characteristics 6 Designation 7 Marking 8 Technical specification Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANo
6、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-e AECMA PREN2371 83 1012311 0003032 b M!I prEN2371 Page 3 A.E .C .M.A. STAND AR D pr EN2371 Nuts, hexagon steel, cadmium plated left hand thread Classification : I I00 MPa/235OC 1 Scope This standard specifies the chara
7、cteristics of cadmium plated hexagonal nuts in steel with left hand thread. 2 Field of application These nuts are intended for use on aircraft assemblies subjected principally to tensile load. They shall be associated with bolts of 1100 MPa tensile classification. The cadmium plating restricts the a
8、pplication to temperatures not exceeding 235 “C. 3 References IS0 5855/1, MJ - Threads - Part 1 : Basic profile. IS0 5855i2, MJ - Threads -Part 2 : Dimensions for bolts and nuts. EN2133, Cadmium plating of steels with maximum specified tensile strength equal to or less than 1450 MPa, and copper and
9、copper alloys. EN2205, Steel FE-PL43S - 900 MPa i E (1 o. o I Lo I Q- Lo I h. c X O P I Lo I Q- m. F X O cI 2 _ - a U O o O o3 O 0 I i I Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permi
10、tted without license from IHS-,-,-AECMA PREN2371 83 1012311 0003035 1 prEN2371 Page 6 6 Designation Each nut shall only be designated as in the following example : Description block Identity block NUT 1 ENTI! Number of EN standard - = Locking holes code 100 = Thread code (See table I) Where the foll
11、owing codes apply : F z With locking holes. - = Without locking holes. NOTE If necessary the originator code S95 may be introduced between the description block and the identity block. 7 Marking Each nut shall be marked at the position indicated in the figure in accordance with EN2424 according to t
12、he marking styles defined in table 2. TABLE 2 I Thread code I Marking style I 080 to 160 c 180 to 200 A d 8 Technical specification Nuts supplied to this standard shall conform with the requirements of EN2427”. 1) In preparation. 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-,-,-
