A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6150-01-184-3581
NSN 6105-00-045-3697
NSN 5935-01-425-8608
NSN 5915-01-589-4149
NSN 6650-01-364-1313
NSN 6135-00-715-4001
NSN 5999-01-176-8645
NSN 5915-01-244-3616
NSN 4140-00-322-9987
NSN 6135-00-377-9165
NSN 6645-00-989-2972
NSN 6320-00-433-2773