A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6610-01-399-7613
NSN 5990-01-431-6749
NSN 5950-01-541-5016
NSN 5998-01-607-6549
NSN 5855-00-586-6255
NSN 2925-01-091-4734
NSN 6645-00-843-8837
NSN 5935-00-581-8134
NSN 5930-00-552-9940
NSN 6650-01-054-9663
NSN 5965-00-497-8820
NSN 5855-00-149-0766