A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5895-00-716-0639
NSN 5895-01-054-9442
NSN 5910-00-153-9544
NSN 4140-00-722-8888
NSN 5930-00-521-5450
NSN 6220-00-551-0704
NSN 5985-00-010-0645
NSN 6150-01-228-2847
NSN 6685-01-039-6411
NSN 5905-00-847-7263
NSN 2925-00-973-1159
NSN 6320-01-562-1599