A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5935-00-282-2729
NSN 2925-00-936-9344
NSN 7035-00-445-9657
NSN 5990-01-188-7309
NSN 5990-01-544-0364
NSN 6650-00-804-2039
NSN 6610-00-941-0509
NSN 2925-01-545-2717
NSN 6110-01-548-3599
NSN 6130-01-201-0664
NSN 5905-00-231-4610
NSN 6610-00-171-5015