A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5990-01-384-9747
NSN 5915-01-314-3136
NSN 6685-01-384-3143
NSN 5925-01-245-8648
NSN 6320-01-592-6248
NSN 2925-00-373-8837
NSN 5999-01-086-9146
NSN 5935-01-188-8545
NSN 6145-00-284-0870
NSN 6645-00-581-9239
NSN 6645-01-468-8895
NSN 5999-01-539-3248