MS21318A (NOTICE 1), MILITARY SPECIFICATION: SCREW, DRIVE, ROUND HEAD, TYPE U, STEEL, CARBON, CADMIUM PLATED (24 JUN 1994) [SUPERSEDED BY NASM21318]
MS21318A (NOTICE 1), MILITARY SPECIFICATION: SCREW, DRIVE, ROUND HEAD, TYPE U, STEEL, CARBON, CADMIUM PLATED (24 JUN 1994) [SUPERSEDED BY NASM21318].