A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5950-01-420-2783
NSN 5960-01-548-4896
NSN 5950-01-605-2823
NSN 5920-01-457-6741
NSN 5999-01-431-7323
NSN 6620-01-214-7520
NSN 6610-00-924-2828
NSN 5895-01-642-5651
NSN 5835-01-216-5639
NSN 6220-01-054-0331
NSN 6145-00-721-4066
NSN 6105-00-259-1692