A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5925-01-223-2077
NSN 5990-01-649-4647
NSN 6150-01-030-4082
NSN 6150-01-104-4323
NSN 6110-00-132-6423
NSN 5905-00-707-7733
NSN 4140-01-445-6656
NSN 5950-00-203-2368
NSN 6650-01-050-8680
NSN 6220-01-130-8762
NSN 5930-01-369-4855
NSN 5935-01-516-0100