A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5945-00-685-9337
NSN 5915-00-203-5890
NSN 6130-01-528-4944
NSN 6650-01-006-9593
NSN 5935-01-203-6923
NSN 5965-01-010-7428
NSN 4140-00-722-8888
NSN 2925-00-535-0372
NSN 5920-00-702-5043
NSN 6135-01-355-8917
NSN 5999-00-509-8807
NSN 5895-00-476-9661