A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 4140-01-577-6747
NSN 7035-00-887-4674
NSN 5975-00-377-8914
NSN 6620-01-232-8550
NSN 5985-01-618-2217
NSN 5990-01-086-4825
NSN 5985-01-282-5543
NSN 5935-01-206-8134
NSN 5945-01-569-5674
NSN 6110-01-033-8401
NSN 5855-01-180-5369
NSN 5920-00-574-4449