A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5855-00-167-7893
NSN 5920-01-528-7196
NSN 6620-00-377-9068
NSN 5998-00-192-2467
NSN 5935-01-651-6018
NSN 5915-01-306-0288
NSN 5895-00-932-4711
NSN 5905-01-148-6262
NSN 2925-01-465-3437
NSN 2925-00-150-7334
NSN 6320-00-925-0558
NSN 4140-00-907-6967