A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6650-01-207-0039
NSN 6220-01-436-3850
NSN 5935-01-257-0919
NSN 4140-01-346-1322
NSN 5935-01-018-2772
NSN 5920-01-631-2236
NSN 6240-01-485-3116
NSN 5935-01-374-5994
NSN 5998-01-227-6655
NSN 6150-01-530-4720
NSN 5985-01-580-7791
NSN 5965-00-644-0339