A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6320-00-139-1090
NSN 6610-01-605-1509
NSN 5915-01-398-9831
NSN 5945-00-729-5607
NSN 5945-01-408-1509
NSN 5910-01-064-1576
NSN 6150-01-634-0575
NSN 5920-01-414-2393
NSN 6130-00-845-0534
NSN 6320-01-220-2264
NSN 6240-01-333-1996
NSN 5925-01-053-6519