A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6620-01-529-7513
NSN 5915-01-269-3874
NSN 5935-01-110-1071
NSN 5998-01-145-6618
NSN 5895-01-328-8703
NSN 5975-00-808-5929
NSN 5835-01-343-7516
NSN 6145-00-130-3558
NSN 5945-01-317-3193
NSN 5895-01-340-4539
NSN 5945-00-481-8010
NSN 7035-00-445-9657