A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5999-01-264-1016
NSN 5975-01-382-1657
NSN 6645-01-196-8616
NSN 6135-01-231-4809
NSN 5925-00-081-9135
NSN 6320-01-527-0211
NSN 5960-01-214-4518
NSN 5975-00-526-4701
NSN 6150-01-277-5992
NSN 6620-00-004-1374
NSN 5996-01-251-3640
NSN 5910-01-173-6302