A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5905-01-386-4483
NSN 5905-00-936-3832
NSN 5999-01-631-9207
NSN 5985-01-604-2342
NSN 6145-00-107-7913
NSN 5915-01-023-8326
NSN 6105-00-960-0072
NSN 6240-01-478-3332
NSN 2925-01-112-6822
NSN 5855-01-062-3126
NSN 5920-01-393-5460
NSN 7035-01-633-9537