1、CEN PRENJLiLbb 94 3404589 0062750 254 m AECMA STANDARD NORME AECMA AECMA NORM prEN 4166 Edition P1 May 1994 EDIT 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 : Descriptors
2、 : ENGLISH VERSION Aerospace series Clips, spring tension, three parts PTFE bushes Srie arospatiale Colliers de fixation ressort en trois parties Bagues en PTFE Luft- und Raumfahrt Rohrschellen, federnd, dreiteilig Hlsen aus PTFE This “Aerospace Series I Prestandard has been drawn up under the respo
3、nsibility 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 countries. Subsequent to the publica
4、tion 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 INPSI and formal agreement of the Offici
5、al 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. - Technopolis 54 - 199, rue Jean-Jacques Rousseau - 921 38 ISSY-LES-MOULINEAUX CEDEX Comments should
6、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 Edition approved for publication 1994-05-31 C8 Chairman M. Williams I I aecrna 199. CEN PREN*4Lhh 94 m 3404589 OOh2753 190 m Page 3 prEN 4166 : 1994
7、 O O 1 Scope This standard specifies the characteristics of PTFE bushes for three part clips, spring tension for applications at a maximum temperature of 260 OC. They shall be assembled with parts from EN 4167 and EN 4168. 2 Normative references EN 2000 EN 2424 EN 4167 EN 4168 AMS 36598 AMS 36608 Ae
8、rospace series - Quality assurance - EN aerospace products - Approval of the quality system of manufacturers Aerospace series - Marking of aerospace products 1) Aerospace series - Clips, spring tension, three parts - Inner clips in heat resisting steel FE-PA92HT (A2861 2) Aerospace series - Clips, s
9、pring tension, three parts - Outer clips in heat resisting steel FE-PA92HT (A286) 2) Polytetrafluoroethylene Extrusions, Premium Strength, Stress-Relieved 3) Polytetrafluoroethylene Moldings, As Sintered, General Purpose Grade 3) 3 Required characteristics 3.1 See figure 1 and table 1. Dimensions an
10、d tolerances are in millimetres. Configuration - Dimensions - Tolerances 3.2 Materials PTFE according to AMS 3659 for tube diameters I 12 mm and AMS 3660 for tube diameters 12 mm O 1) Published as AECMA Standard at the date of publication of this standard 2) Published as AECMA Prestandard at the dat
11、e of publication of this standard 3) Published by : Society of Automotive Engineers, inc. (SAE), 400 Commonwealth Drive, Warendale, PA 15096-0001, United States Previous page is blank CEN PRENJ4Lbb 74 m 340Y587 0062752 O27 m o1 2 014 Page 4 prEN 4166 : 1994 12 16 14 18 3 1.3 to1,8 I 025 032 -I 25 29
12、 32 36 m sharp edges 1.0 max. 2 min. Y 1 R 1.3 to 1,8 Optional configuration z-z 1) Dimensions apply when cushion is assembled on a test bar (or tube) of diameter A f 0,08. Figure 1 Table 1 Diameter I A I BI G code + 0,l I I I Ot2 I -0,3 I I I I 004 I I o1 o I 10 I 14 I I I 020 20 24 CEN PRENx4Lbb 7
13、4 W 3404587 00b2753 Tb3 Description block BUSH Page 5 prEN 4166 : 1994 Identity block EN4166-016 4 Designation O EXAMPLE : , Number of this standard Diameter code (see table 1) NOTE : If necessary, the code 19005 shall be placed between the description block and the identity block. 5 Marking a EN 2424, style A, as indicated on figure 1 6 Quality assurance EN 2000
