MIL-F-18240E, MILITARY SPECIFICATION: FASTENER ELEMENT, SELF-LOCKING, THREADED FASTENER, 250 DEG. F MAXIMUM (01 DEC 1989) [S/S BY MIL-DTL-18240F)

MIL-F-18240E, MILITARY SPECIFICATION: FASTENER ELEMENT, SELF-LOCKING, THREADED FASTENER, 250 DEG. F MAXIMUM (01 DEC 1989) [S/S BY MIL-DTL-18240F)., This specification defines the requirements for self-locking elements for use in externally threaded fasteners such as bolts and screws to be used in fasteners with either UNC, UNJC, UNF, UNJF, UNRC or UNRF threads and where the temperatures will not exceed 250 deg. F.