A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5999-01-570-1605
NSN 6685-00-133-7910
NSN 5835-01-495-0595
NSN 5935-01-519-8606
NSN 5930-00-990-6781
NSN 6620-00-905-6590
NSN 6135-01-069-2482
NSN 5835-01-310-8979
NSN 6220-00-030-2448
NSN 2925-01-204-6243
NSN 5895-00-757-9250
NSN 4140-00-170-5152