A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5910-00-924-9758
NSN 6620-00-050-1086
NSN 5996-01-488-8420
NSN 5996-01-038-2247
NSN 5855-01-446-1936
NSN 6150-00-609-4071
NSN 4140-00-227-8228
NSN 6220-01-014-5351
NSN 6610-01-601-7648
NSN 5920-01-144-1500
NSN 6145-01-584-6977
NSN 6610-01-305-0954