A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5945-00-125-9907
NSN 5905-00-229-8021
NSN 5930-00-917-9863
NSN 6105-00-522-8528
NSN 6220-00-099-9192
NSN 5920-01-422-3730
NSN 5935-00-020-7979
NSN 6650-00-537-9222
NSN 6135-00-862-5736
NSN 5990-01-421-3325
NSN 6105-01-407-8697
NSN 6220-01-254-7921