A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6650-00-197-7563
NSN 5999-01-371-1378
NSN 4140-01-500-0618
NSN 5915-01-496-2314
NSN 6135-01-062-9356
NSN 6105-01-538-2160
NSN 5950-01-290-5346
NSN 5990-01-187-5420
NSN 6220-01-454-3400
NSN 6650-01-579-3855
NSN 6150-01-450-7322
NSN 4140-01-225-8599