A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6650-01-471-4663
NSN 2925-00-788-0043
NSN 6685-00-741-3035
NSN 6685-01-174-5598
NSN 5835-01-201-7363
NSN 5895-01-384-3565
NSN 6650-01-231-6728
NSN 6645-01-225-0453
NSN 5999-01-620-4636
NSN 6650-00-578-6543
NSN 5975-00-624-6949
NSN 5855-01-191-3404