1、 - CEN PREN*3304 92 = 3404589 0024824-5 Edition approved for publication Comments should be sent within six months after the date of publication decision A.E.C.M.A. Technopolis - 175, rue Jean-Jacques Rousseau 92138 Issy-les-Moulineaux Cdex - FRANCE 1992-03-1 3 A. E. C. M .A. STAN DAR D NORME A.E.C.
2、M.A. A.E.C.M.A. NORM C3 Chairman Mr. ARENA prEN 3304 Issue P 1 March 1992 DIT PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATRIEL AROSPATIAL Technopolis - 175, rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cdex -Tl. (1) 47.36.98.76 UDC : Key words : ENGLISH VERSION Aerospace series Bol
3、ts, I OOo countersunk reduced head, offset cruciform recess, close tolerance shank, short thread, in titanium alloy, Mo d min.: see IS0 5855-2. 3) Increments : - 1 for L1 5 30 - 2 for 30 100 If greater lengths are required, they shall be chosen using these steps. The length code corresponds to the l
4、ength L1, completed by one or two zero(s) to the left, where necessary, to obtain a 3 digit code. 4) Approximate values (kgll O00 pieces), calculated on the basis of 4,45 kg/dm3, Qiven for information purpose only They apply to bolts without hole. Copyright Association Europeene des Constructeurs de
5、 Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- CEN PRENu3304 92 3404589 0024829 4 m. prEN 3304 Page 7 4 Designation Example: Identity block i i Description block BOLT EN3304DOLOC -7 Number of this stan
6、dard 7, I Locking code (see table 2) 1 Diameter code (see table 1) I Length code (see table 1) Table 2 Option Locking code Split pin hole D No hole - . Note: If necessary, the originator code 19005 shall be placed- between the description block and the identity block. 5 Marking See table 3 and figur
7、e 1. Table 3 Diameter code Style to EN2424 040 N 050 to 120 B 140 to 200 A 6 Technical specification IS0 91 52 except for : - approval of manufacturers: EN2000 - qualification of bolts: EN3042 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-,-,-
