A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5990-01-392-5682
NSN 5999-01-363-7209
NSN 6610-01-034-9044
NSN 6320-01-631-7828
NSN 5965-01-508-9695
NSN 5905-01-451-7391
NSN 5915-00-440-9112
NSN 5855-00-149-0766
NSN 6320-01-426-1324
NSN 5930-01-486-0567
NSN 5999-01-260-9542
NSN 5945-01-201-9713