MS16219A (NOTICE 1), MILITARY STANDARD: SCREWS, MACHINE, FLAT COUNTERSUNK HEAD, SLOTTED, NONMAGNETIC, CORROSION RESISTING STEEL, PASSIVATED, UNC-2A (27 MAR 1991)

MS16219A (NOTICE 1), MILITARY STANDARD: SCREWS, MACHINE, FLAT COUNTERSUNK HEAD, SLOTTED, NONMAGNETIC, CORROSION RESISTING STEEL, PASSIVATED, UNC-2A (27 MAR 1991).