A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5965-01-050-7055
NSN 6240-01-488-3094
NSN 5945-00-106-3593
NSN 5960-00-410-3500
NSN 5930-01-400-6126
NSN 6620-01-396-2149
NSN 5920-00-541-1119
NSN 5990-00-308-2538
NSN 4140-00-040-2084
NSN 6685-01-554-0307
NSN 6150-01-393-7422
NSN 5950-01-050-8228