A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5985-01-305-7305
NSN 5945-00-941-0441
NSN 5895-01-068-4764
NSN 6645-01-317-6071
NSN 5930-00-105-7755
NSN 5999-01-341-1254
NSN 6220-01-488-9416
NSN 5950-01-535-0680
NSN 5920-01-310-9162
NSN 4140-01-295-8264
NSN 6130-00-019-6777
NSN 6145-01-238-1941