MS21262D (NOTICE 1), MILITARY SPECIFICATION: SCREWS, SELF LOCKING, 250 DEG. F, CYLINDRICAL HEAD HEXAGONAL WRENCHING SOCKET, ALLOY STEEL, 160 KSI FTU (SOCKET HEAD CAP SCREWS) (24 JUN 1994) [SUPERSEDED BY NASM21262]

MS21262D (NOTICE 1), MILITARY SPECIFICATION: SCREWS, SELF LOCKING, 250 DEG. F, CYLINDRICAL HEAD HEXAGONAL WRENCHING SOCKET, ALLOY STEEL, 160 KSI FTU (SOCKET HEAD CAP SCREWS) (24 JUN 1994) [SUPERSEDED BY NASM21262].