A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6620-01-446-6571
NSN 5998-01-609-1370
NSN 6240-00-307-9650
NSN 5915-00-837-2803
NSN 6220-01-242-9901
NSN 6320-01-449-1014
NSN 6645-00-313-2324
NSN 5855-01-372-9728
NSN 6240-01-351-6729
NSN 6320-00-213-0477
NSN 5998-01-503-4313
NSN 5996-00-632-0117