A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6240-01-351-6729
NSN 5990-01-311-3710
NSN 5855-01-658-4510
NSN 5895-00-822-9749
NSN 6110-01-071-7513
NSN 6320-00-036-3688
NSN 5915-00-115-5407
NSN 5950-00-349-8914
NSN 6135-01-265-1384
NSN 6685-00-350-9248
NSN 5855-00-337-3679
NSN 6610-00-726-9421