A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5990-01-432-4984
NSN 6135-00-900-2139
NSN 5930-01-279-2388
NSN 6645-01-523-8809
NSN 5945-01-386-5718
NSN 6650-01-433-3056
NSN 5985-00-889-0320
NSN 6240-00-578-6763
NSN 5985-00-852-0457
NSN 5998-01-550-9808
NSN 6650-01-308-0445
NSN 5905-00-156-2982