A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 4140-01-235-3921
NSN 6145-01-373-6415
NSN 5925-01-242-1524
NSN 5990-01-465-9235
NSN 6105-01-386-4038
NSN 6150-00-791-5413
NSN 6135-01-508-3784
NSN 6685-01-548-5056
NSN 6645-01-320-4138
NSN 5950-01-305-0328
NSN 6130-00-057-4603
NSN 2925-01-271-8727