A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6135-01-441-0518
NSN 5895-00-525-3295
NSN 5915-01-384-3704
NSN 6320-01-072-2073
NSN 5905-01-512-9136
NSN 6130-00-702-8865
NSN 5905-01-308-6029
NSN 5935-01-459-7950
NSN 4140-01-007-7992
NSN 6220-01-435-4839
NSN 5935-00-652-2521
NSN 6150-00-471-1986