A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6150-01-054-1346
NSN 5975-00-284-9343
NSN 6240-01-247-0201
NSN 5930-00-294-9189
NSN 6650-00-248-8913
NSN 6145-00-347-1171
NSN 6135-01-045-1504
NSN 6610-01-032-0204
NSN 5960-01-433-7565
NSN 5915-00-478-7834
NSN 4140-01-625-9355
NSN 5950-00-362-5661