1、STD.AECMA PWEN 4495-ENGL L999 RI LOL231L 00Lb525 55L Edition approved for publication 1999-09-30 AECMA STANDARD NORME AECMA AECMA NORM Comments should be sent within six months after the date of publication to AECMA Gulledelle 94 6-1200 BRUXELLES prEN 4495 Edition P 1 September 1999 PUBLISHED BY THE
2、 EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledelle 94 - 8-1200 BRUXELLES - Tel. (i32) 2 775 81 10 - Fax. (+32) 2 775 81 I I ICs: 49.030.20 Descriptors: aircraft industry, aircraft equipment, screw, hexagonal head screw, titanium alloy, screw thread, specification, characteristic, dimen
3、sion, mass, dimensional tolerance, surface treatment, designation, marking ENGLISH VERSION Aerospace series Bolts, normal hexagonal head, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating Classification: 1 100 MPa (at ambient temperature) / 315
4、 OC Srie arospatiale Luft- und Raumfahrt Vis tte hexagonale normale, ft normal tolrance serre, filetage court, en alliage de titane, anodises, avec revtement alumino-organique Classification : I I00 MPa ( temprature ambiante) I315 OC Sechskant-Paschrau ben, kurzes Gewinde, aus Titanlegierung, anodis
5、iert, mit Aluminium pigmenttete Beschichtung Klasse: I I00 MPa (bei Raumtemperatur) I315 OC This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA (The European Association of Aerospace Industries). It is published on green paper for the needs of AECMA-Members. It ha
6、s been technically approved by the experts of the concerned Technical Committee following comment by the Member countries. Subsequent to the publication of this Presfandard, the technical content shall not be changed to an extenf that interchangeability is affected, physically or functionally, witho
7、ut re-identification of the standard. After examination and signature of the AECMA Standard Checking Centre (NPS) and formal agreement of the Oficial Sewices of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. Not
8、a - Extra copies can be supplied by B.N.A.E. - Technopolis 54 - 199, rue Jean-Jacques Rousseau - 92138 ISSY-LES-MOULINEAUX CEDEX C3 Chairman Mr Visconti aecma 1999 COPYRIGHT Association Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handling ServicesSTD.AECMA PREN 4495-ENGL
9、 1999 1111 LOL23Lb OOLbfii-b 498 Page 3 prEN 4495: 1999 1 Scope This standard specifies the characteristics of bolts, normal hexagonal head, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating. Classification: 1 I O0 MPa / 31 5 “C *) 2 Normative
10、references IS0 3193 IS0 3353 IS0 5855-2 IS0 7913 IS0 9152 EN 2000 EN 2424 EN 3042 EN 4016 EN 4474 MIL-L-87132B TR 3775 Aerospace - Bolts, normal hexagonal head, normal shank, short or medium length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to I 100 MPa -
11、Dimensions Aerospace - Rolled threads for bolts - Lead and runout requirements Aerospace - MJ threads - Part 2: Limit dimensions for bolts and nuts Aerospace - Bolts and screws, metric - Tolerances of form and position Aerospace - Bolts, with MJ threads, in titanium alloys, strength class 1 100 MPa
12、- Procurement specification Aerospace series - Quality assurance - EN aerospace products - Approval of the quality system of manufacturers Aerospace series - Marking of aerospace products Aerospace series - Quality assurance - EN aerospace products - Qualification procedure Aerospace series - Oversi
13、zed bolts 3, Aerospace series - Aluminium pigmented coating - Coating methods 3, Lubricant, Cetyl Alcohol, I -Hexadecanol, Application to Fasteners 4, Aerospace series - Bolts and pins - National materials 5, 1) Minimum tensile strength of the material at ambient temperature 2) Maximum temperature t
14、hat the bolt can withstand without continuous change in its original characteristics, after return to ambient temperature. The maximum temperature is determined by the coating. 3) Published as AECMA Prestandard at the date of publication of this standard 4) Published by: Department of Defense (DoD),
15、 the Pentagon, Washington, D.C.20301, USA 5) Published as AECMA Technical Report at the date of publication of this standard Previous page is blank COPYRIGHT Association Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handling ServicesPage 4 STD-AECMA PREN 4495-ENGL 1999 I 1
16、012311 001b527 324 prEN 4495: 1999 3 Required characteristics 3.1 See figure 1 and table 1. Dimensions and tolerances are: in conformity with IS0 31 93, expressed in millimetres and apply after coating (tolerance on shank diameter before coating is also specified). Details of form not stated are lef
17、t to the manufacturers discretion. Configuration - Dimensions - Masses 3.2 IS0 7913 Tolerances of form and position 3.3 Materials TR 3775 (titanium alloy, strength class 1 100 MPa) 3.4 Surface treatments EN 4474 Lubrication with cetylic alcohol (chlorine free) according to MIL-L-87132 COPYRIGHT Asso
18、ciation Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handling ServicesSTD*AECMA PREN 4495-ENGL 1999 E LO123L1 0016528 2b0 Page 5 prEN 4495: 1999 O +-. a 0) m) 8 n O L -lu t v) 2- O rn / O I n 4 c Ia 0 COPYRIGHT Association Europeene Des Constructeurs de Materiel Aerospace
19、Licensed by Information Handling ServicesPage 6 STD-AECMA PREN 4495-ENGL 1999 E LO12311 OOLb529 IT7 H prEN 4495: 1999 L I al c 5 - $ a O u) 5 c N O 2 2lJj $2 a c O al u- al- 3 - OG Eo 03 m- 0 oo I si E Lh- x .- E O .i E m 65 om mm N-l, c9 m m “f - O I- c- E S In N 0- O I c E 4 ._ O m 3 0. al al a m
20、II: u) c o c .u - - .- 3 x E .- m E b m c al U O % .- U 3 +I !i I) a” l- o a ii m Qm O O I a“ .- E E 30 c 5 I; E ? .I c* O nl m o m c i- 2 - in w r? X O N, z L a, a;* mo 0 O a) 7 0 (c C 0 fo O O nl COPYRIGHT Association Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handlin
21、g ServicesPage 7 prEN 4495: 1999 STD-AECMA PREN 4495-ENGL 1999 II LOL23LL Lb530 919 H Number of this standard 4 Designation EXAMPLE: Hole code (see table 2) Diameter code (see table 1) Description block I identity block 050 to 200 C+MJ Holes I Code 1 I Lockwire Split pin Lockwire and split pin 5 Mar
22、king See table 3 and figure 1, indented. Table 3 Diameter code I EN 2424 Style 6 Technical specification IS0 91 52, with the following modifications: 6.1 Approval of manufacturers EN 2000 6.2 Qualification of bolts EN 3042 6.3 Requirement deleted Double shear strength 7 Oversized bolts EN 4016 COPYRIGHT Association Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handling Services
