A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 2925-01-180-7793
NSN 5990-00-369-1532
NSN 6240-00-635-9953
NSN 5998-01-464-1771
NSN 5999-01-461-1779
NSN 6220-00-951-6900
NSN 5910-01-307-5886
NSN 6320-01-583-6809
NSN 5975-00-491-2976
NSN 6145-01-375-1369
NSN 6650-01-147-7135
NSN 5960-00-974-4003