A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5975-01-054-7123
NSN 6110-00-816-9715
NSN 5945-01-062-2239
NSN 6650-00-331-2232
NSN 5915-01-319-2906
NSN 6650-01-040-8338
NSN 5855-00-177-3529
NSN 5950-00-977-5849
NSN 6610-01-043-4043
NSN 6110-01-613-0036
NSN 6620-01-322-5576
NSN 6240-00-518-3541