A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5950-00-884-4862
NSN 5895-01-406-7377
NSN 5950-00-661-2612
NSN 5965-00-789-1654
NSN 6685-01-373-2860
NSN 6320-00-506-2314
NSN 6610-00-343-9331
NSN 5960-00-240-3171
NSN 5999-00-189-0032
NSN 5935-00-209-6774
NSN 6105-00-501-4768
NSN 6240-01-434-6374