A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6220-01-552-7313
NSN 6150-00-456-0775
NSN 5999-01-429-1238
NSN 5920-00-798-5710
NSN 5905-01-063-2338
NSN 5920-00-051-9742
NSN 6110-00-074-9179
NSN 5915-00-198-3881
NSN 5930-00-908-6932
NSN 5905-00-577-3803
NSN 5975-00-330-8976
NSN 6650-00-023-1638