A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6645-01-262-3066
NSN 5998-01-249-2201
NSN 5965-01-625-2426
NSN 6110-00-460-7179
NSN 5920-00-052-3507
NSN 5910-01-403-2812
NSN 5990-01-432-4984
NSN 5910-00-237-5250
NSN 5965-01-245-6585
NSN 5905-00-469-7382
NSN 6105-01-059-6108
NSN 6105-00-852-4823