A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6620-01-535-6925
NSN 6105-01-557-8315
NSN 5855-01-467-3802
NSN 5895-00-280-7528
NSN 6145-01-316-8089
NSN 5925-01-093-7886
NSN 6220-00-803-7041
NSN 5998-00-349-3777
NSN 6130-01-600-1535
NSN 6320-00-456-0836
NSN 6620-00-854-5024
NSN 6685-01-132-7474