MS51973B, MILITARY STANDARD: SETSCREW - HEXAGON SOCKET, CONE POINT, ALLOY STEEL, CADMIUM PLATED, UNC-3A, PLAIN AND SELF-LOCKING (29-DEC-1972) [SUPERSEDING MS51034 & MS51036] [S/S BY NASM51973]

MS51973B, MILITARY STANDARD: SETSCREW - HEXAGON SOCKET, CONE POINT, ALLOY STEEL, CADMIUM PLATED, UNC-3A, PLAIN AND SELF-LOCKING (29-DEC-1972) [SUPERSEDING MS51034 & MS51036] [S/S BY NASM51973].