A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5920-01-153-2690
NSN 4140-01-486-7172
NSN 6130-00-361-7114
NSN 6685-01-411-3291
NSN 5925-01-479-0213
NSN 5998-01-280-3727
NSN 5835-01-324-0089
NSN 6145-00-539-9799
NSN 6240-00-908-5069
NSN 5835-01-485-0210
NSN 4140-01-204-7025
NSN 6105-01-502-6308