A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6610-01-412-5776
NSN 4140-01-502-8993
NSN 5990-01-558-4536
NSN 5996-01-535-6443
NSN 5925-01-112-3629
NSN 6320-00-506-2314
NSN 5985-01-539-3818
NSN 6220-00-156-4469
NSN 6150-00-356-0530
NSN 5999-01-212-8931
NSN 2925-01-620-9673
NSN 4140-00-715-9946