1、 - CEN PREN14069 94 3404589 008L033 708 = AECMA STANDARD NORME AECMA AECMA NORM prEN 4069 Edition 1 November 1994 EDITE PAR LASSOCIATION EUROPEENNE DES CONSTRUCTEURS DE MATtRIEL ACROSPATIAL Technopoiis - 175, rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cedex - Tl. (1) 47.36.98.76 UDC : 6
2、21.882.31 : 629.7 Descriptors : Aircraft industry, nut, fastener, hexagonal nut, heat resistant steel, classification, dimension, dimensional tolerance, surface treatment, screw thread, designation, marking ENGLISH VERSION Aerospace series Nuts, hexagon, plain, reduced height, reduced across flats,
3、in heat resisting steel, passivated Classification : 600 MPa (at ambient temperature) / 650 OC Srie arospatiale Luft- und Raumfahrt surplats rduits, kleine Schlsselweite, crous hexagonaux ordinaires, hauteur rduite, en acier rsistant chaud, passivs Classification : 600 MPa ( temprature ambiante) I65
4、0 OC Sechskantmuttern, verringerte Hhe, aus hochwarmfestem Stahl, passiviert Klasse : 600 MPa (bei Raumtemperatur) I650 OC This “Aerospace series“ Standard has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published on yellow p
5、aper in three equivalent versions (English, French, German). It will be submitted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. Edition approved for publication 1994-1 1-18 The equivalent versions in French and German languages can be supplied by B.N.A
6、.E. - Technopolis 54 - 199, rue Jean-Jacques Rousseau 92138 ICCY - LEC - MOULINEAUX CEDEX - FRANCE I I aecrna 1994 CEN PRENx4069 94 = 3404589 008L034 6114 Page 3 prEN 4069 : 1994 1 Scope This standard specifies the characteristics of hexagon plain nuts, reduced height, reduced across flats, in heat
7、resisting steel, passivated. Classification : 600 MPa / 650 OC 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed herea
8、fter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. IS0 5855-2 IS0 8788 IS0 9139 EN 2000
9、 EN 2398 EN 2399 EN 2424 EN 2516 EN 3639 TR 3823 Aerospace - MJ threads - Part 2 : Limit dimensions for bolts and nuts Aerospace - Fasteners - Tolerances of form and position for nuts Aerospace - Nuts, plain and slotted - Procurement specification 3, Aerospace series - Quality assurance - EN aerospa
10、ce products - Approval of the quality system of manufacturers Heat resisting steel FE-PA92-HT - R, 2 900 MPa - Bars for machined bolts - D S 25 mm - Aerospace series 4, Heat resisting steel FE-PA92-HT - R, 2 900 MPa - Bars for forged bolts - D S 25 mm - Aerospace series 4, Aerospace series - Marking
11、 of aerospace products 4, Aerospace series - Passivation of corrosion resistant steels and decontamination of nickel base alloys 3, Heat resisting alloy FE-PA2601 - Softened and cold worked - Wire for forged fasteners - D 5 15 mm - 900 MPa c; R, S 1 100 MPa 5, Aerospace series - Materials for plain
12、and slotted hexagonal nuts 1) Corresponds to the minimum tensile stress which the nut is able to withstand at ambient temperature without breaking or cracking when tested with a bolt of a higher strength class. 2) Maximum temperature that the nut is able to withstand, without permanent alteration to
13、 its original characterisitcs, after ambient temperature has been restored. The maximum temperature is conditioned by the material. 3) In preparation at the date of publication of this standard 4) Published as AECMA Standard at the date of publication of this standard 5) Published as AECMA Prestanda
14、rd at the date of publication of this standard 6) Published as AECMA Technical Report at the date of publication of this standard Previous page is blank Page 4 prEN 4069 : 1994 CEN PREN*4069 94 W 3404589 0083035 580 3 Required characteristics 3.1 See figure 1 and table 1. Dimensions and tolerances a
15、re expressed in millimetres and apply after surface treatment. Details of form not stated are at the manufacturers option. 3.2 IS0 8788 3.3 Materials EN 2398, EN 2399, EN 3639 or TR 3823 3.4 Surface treatment Configuration - Dimensions - Masses Tolerances of form and position EN 251 6, process class
16、 appropriate to the material - CEH PREN*4069 94 m 3404589 0083036 417 m Page 5 prEN 4069 : 1994 Remove sharp edges 0,l to 0,4 - x-x 1) These values in micrometres apply before surface treatment. They do not apply to threads the surface texture of which will be as achieved by usual manufacturing meth
17、ods. 2) Ali forms of entry (chamfer or radius) permissible within the limiting dimensions 3) Applicable to both faces 4) From either face Figure 1 Table 1 Diameter Thread 1 min. 100 MJlOx1,25-4H5H 15,5 120 MJ121,25-4H5H 18,9 140 I MJ141,5-4H5H I21,l 160 I MJl6xl,5-4H5H I 24.5 180 I MJ181,5-4H5H I26,
18、8 200 I MJ20xl,5-4H5H I 30,2 220 I MJ22x1,5-4H5H 1 33.6 240 I MJ24x2-4H5H I 35,8 1) In accordance with IS0 5855-2 2) Approximate values (kg/l O00 purposes only. They apply to nuts w iieces), calculated on the basis of 7,85 kg/dm3, given for information :hout holes. - CEN PREM*4069 94 W 3404589 00830
19、37 353 Holes Page 6 prEN 4069 : 1994 Code 4 Designation EXAMPLE : with without Description block Identity block Number of this standard Hole code (see table 21 Diameter code (see table 1) H - (hvrhen) NOTE : If necessary, the code 19005 shall be placed between the description block and the identity block. 5 Marking EN 2424, style C, plus MJ 6 Technical specification IS0 9139 except for approval of manufacturers : see EN 2000.
