A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6620-01-116-3983
NSN 5935-01-063-1022
NSN 5960-01-386-5770
NSN 6645-01-432-0052
NSN 5905-01-584-7013
NSN 5975-00-107-8198
NSN 5935-01-623-7568
NSN 2925-01-271-8727
NSN 6220-01-592-2277
NSN 6320-00-853-1920
NSN 6320-00-149-7570
NSN 6650-01-222-1749