1、CEN PREN+YOL3 93 W 3404589 0047202 747 W e O O O AECMA STANDARD NORME AECMA AECMA NORM prEN 401 3 Edition P1 June 1993 DIT PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATRIEL AROSPATIAL Technopolis - 175, rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cedex - Tl. (1) 47.36.98.76 UDC : D
2、escriptors : ENGLISH VERSION Aerospace series Shank nuts, self-locking, in heat resisting nickel base alloy NI-PIOOHT (Inconel 718), silver plated Classification : 1 550 MPa (at ambient temperature) I600 “C Srie arospatiale Luft- und Raumfahrt crous sertir, freinage interne, en alliage rsistant chau
3、d base de nickel NI-PI OOHT (Inconel 71 81, argents Classification : 1 550 MPa ( temprature ambiante) I600 “C Einnietmuttern, selbstsichernd, aus hochwarmfester Nickelbasislegierung NI-PI OOHT (Inconel 71 81, versilbert Klasse : 1 550 MPa (bei Raumtemperaturl I600 “C This “Aerospace Series Prestanda
4、rci has been drawn up 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 following comment by the Member
5、 countries. 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. After examination and signature of the AECMA Standard Checking Centre (NP
6、SI and formal agreement 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 - 921 38 ISSY-
7、LES-MOULINEAUX CEDEX Edition approved for publication Comments should be sent within six months after the date of oublication to C8 Chairman 1993-06-30 AECMA Technopolis - 175, rue Jean-Jacques Rousseau 921 38 Issy-les-Moulineaux Cedex - FRANCE Mr. Williams I I (J aecma 199 CEN PRENm4013 93 3404587
8、0047203 683 W prEN 4013 Page 3 This standard specifies the characteristics of self-locking shank nuts in NI-PI OOHT, silver plated, for aerospace applications. Classification : 1 550 MPa / 600 OC O O 2 Normative references IS0 5855-2 Aerospace - MJ threads - Part 2 : Limit dim nsions for bolts nd nu
9、ts EN 2424 Aerospace series - Identification marking of standard fasteners 3, EN 2786 EN 2952 Aerospace series - Electrolytic silver plating of fasteners 4, Aerospace series - Heat resisting nickel base alloy (NI-P100HT) - Solution treated and cold worked - Bar for hot upset forging fasteners - 3 I
10、D I30 mm 5, Aerospace series - Nuts, self-locking, with MJ threads, in heat resisting nickel base alloy NI-P100HT (Inconel 7181, silver plated - Classification : 1 550 MPa (at ambient temperature) / 600 OC - Technical specification 4, EN 4047 3 Required characteristics 3.1 See figure 1 and table 1.
11、Dimensions and tolerances are in millimetres. They apply after silver plating. 3.2 Material EN 2952 Configuration - Dimensions - Tolerances - Masses 3.3 Surface treatment EN 2786 Thickness : - External surfaces : 5 pm to 15 pm ; - Thread 2 MJ6 : 5 pm min. shall be measured at the pitch diameter ; -
12、Thread MJ5 : shall show complete coverage, without thickness requirement. O 1) The strength class of the bolt concerned which can withstand the load 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 AECM
13、A Standard at the date of publication of this standard 4) In preparation at the date of publication of this standard 5) Published as AECMA Prestandard at the date of publication of this standard Previous page is blank CEN PREN14013 93 m 3404589 O047204 5LT m Thread *) Code Designation 050 MJ50,8-4H6
14、H 060 MJGx1-4H5H 070 MJ7x1-4H5H 080 MJ8x1-4H5H prEN 4013 Page 4 Mass + 0,l + 0,2 o parts 7 13 7 5,2 1,8 6,s 9,s 2,4 8,s 2,78 9 16 9 7.2 2,8 8,5 11,5 3.4 10.5 4.28 10 17 10 8,2 3,2 9,5 12.5 3,9 11,5 5,56 C E H J L P S T 2 kg/l O00 N k 0,l k 0,25 h14 O O -0,l * 0,l i: 0,25 rnax. N 8 14 8 6.2 7.5 10.5
15、9,5 3,45 6,7 (1.7 j,? lhreod surfoce wili be us achieved by normal methods of manuf oc t Ure. *) In accordance with IS0 5855-2. In the self-locking zone, the tolerances apply before forming out-of- LlO,l31ANot convex L Form optional Form out-of-round in this area to achieve the self-locking requirem
16、ent. (tooling marks permissible) X in these areas k? in Cocking area. Remove sharp edges 0.1 to 0.4 Details of form not stated are left ,to the manufacturers diyrretion. Figure 1 Table 1 CEN PRENx4013 73 3404589 0047205 45b prEN 4013 Page 5 Description block 4 Designation O Identity block EXAMPLE : NOTE : If necessary, the code 19005 shall be placed between the description block and the identity block. 5 Marking O EN 2424, style A, as indicated on figure 1. 6 Technical specification EN 4047
