MS21093B (NOTICE 1), MILITARY STANDARD: SCREW, SELF-LOCKING, 250 DEG. F, STEEL, 55 KSI FTU, 100 DEG. FLAT HEAD, CROSS RECESSED (09 OCT 1991) [SUPERSEDED BY NASM21093]

MS21093B (NOTICE 1), MILITARY STANDARD: SCREW, SELF-LOCKING, 250 DEG. F, STEEL, 55 KSI FTU, 100 DEG. FLAT HEAD, CROSS RECESSED (09 OCT 1991) [SUPERSEDED BY NASM21093].