A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5855-01-631-5051
NSN 5950-01-161-3090
NSN 4140-01-007-5247
NSN 6220-01-006-4966
NSN 6135-01-428-7490
NSN 5855-00-548-4742
NSN 6130-00-153-3136
NSN 5920-01-523-1571
NSN 5925-01-069-0276
NSN 5960-01-474-4843
NSN 5935-00-841-8371
NSN 5960-00-970-7960