A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5910-01-443-6846
NSN 6110-00-883-3505
NSN 6645-01-195-3329
NSN 6685-01-148-3611
NSN 7035-01-540-7316
NSN 6645-01-058-8877
NSN 5925-01-387-0763
NSN 6620-01-483-1138
NSN 6620-01-461-3550
NSN 4140-00-563-3959
NSN 5920-01-383-1933
NSN 5965-01-099-8745