MS51963C (NOTICE 1), MILITARY STANDARD: SETSCREW-HEXAGON SOCKET, CUP POINT, ALLOY STEEL, CADMIUM PLATED, UNC-3A, PLAIN AND SELF-LOCKING (30 SEP 1999) [SUPERSEDED BY NASM51963].
MS51963C (NOTICE 1), MILITARY STANDARD: SETSCREW-HEXAGON SOCKET, CUP POINT, ALLOY STEEL, CADMIUM PLATED, UNC-3A, PLAIN AND SELF-LOCKING (30 SEP 1999) [SUPERSEDED BY NASM51963].