A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6645-01-161-8047
NSN 6145-00-500-5679
NSN 6220-01-387-6332
NSN 5975-01-197-0472
NSN 6320-01-211-2574
NSN 5990-01-652-7373
NSN 5925-01-088-6863
NSN 4140-01-384-4143
NSN 5925-01-485-0125
NSN 5920-00-993-2194
NSN 5835-01-116-2369
NSN 5999-01-359-8736