A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5855-01-523-1177
NSN 5990-00-027-7508
NSN 5996-01-647-8668
NSN 6645-01-499-1434
NSN 6130-01-382-2426
NSN 6220-01-168-7773
NSN 5960-01-488-5817
NSN 4140-01-539-0548
NSN 4140-01-330-6863
NSN 5990-01-380-0650
NSN 5915-00-936-7572
NSN 5930-01-520-6009