MS21262D (NOTICE 2), MILITARY STANDARD: SCREWS, SELF LOCKING, 250 DEG. F, CYLINDRICAL HEAD HEXAGONAL WRENCHING SOCKET, ALLOY STEEL, 160 KSI FTU (SOCKET HEAD CAP SCREWS) (25 NOV 1998) [SUPERSEDED BY NASM21262]

MS21262D (NOTICE 2), MILITARY STANDARD: SCREWS, SELF LOCKING, 250 DEG. F, CYLINDRICAL HEAD HEXAGONAL WRENCHING SOCKET, ALLOY STEEL, 160 KSI FTU (SOCKET HEAD CAP SCREWS) (25 NOV 1998) [SUPERSEDED BY NASM21262].