A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6320-01-433-3953
NSN 5945-01-184-8811
NSN 6620-00-953-4274
NSN 5960-00-519-9880
NSN 6610-01-013-8922
NSN 2925-01-140-8957
NSN 6150-00-178-0143
NSN 5835-00-269-2232
NSN 5920-00-963-0140
NSN 6610-00-651-4567
NSN 6650-00-440-3537
NSN 5990-00-336-2054