A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6645-00-445-3318
NSN 6685-01-379-0479
NSN 5945-01-230-3788
NSN 5905-01-399-4549
NSN 6610-01-388-8664
NSN 5990-00-467-7431
NSN 5960-00-044-1883
NSN 5895-01-386-7571
NSN 5915-01-528-6426
NSN 6620-00-905-6590
NSN 5998-00-810-7559
NSN 5905-01-435-6357