A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5905-00-294-9445
NSN 6240-01-446-6315
NSN 6645-01-642-1300
NSN 5905-00-386-8325
NSN 6320-01-415-0953
NSN 6240-01-294-4536
NSN 6645-01-446-5419
NSN 6685-01-512-1602
NSN 6150-01-329-0916
NSN 6105-01-450-6439
NSN 5985-01-378-8653
NSN 6105-01-398-7369