A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6130-01-394-7130
NSN 6320-01-412-2973
NSN 5935-00-855-4416
NSN 5975-01-248-6261
NSN 5835-01-435-4139
NSN 6145-01-525-2805
NSN 6135-01-426-8282
NSN 5935-00-015-3858
NSN 5999-00-474-1648
NSN 6610-01-555-8791
NSN 6650-01-199-0570
NSN 4140-01-029-2814