A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5965-01-571-7958
NSN 5935-01-440-3059
NSN 5925-01-254-2578
NSN 5985-01-560-6870
NSN 5975-01-214-8980
NSN 5990-01-527-7640
NSN 6610-00-444-9641
NSN 6240-01-440-6665
NSN 6105-01-551-8616
NSN 2925-01-543-5571
NSN 5895-01-158-6357
NSN 6240-01-633-9357