A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6320-01-643-0850
NSN 6320-00-360-1744
NSN 6620-01-184-7384
NSN 5915-01-480-3967
NSN 5975-01-500-1794
NSN 5855-01-339-7675
NSN 5990-00-108-5400
NSN 5960-01-281-5437
NSN 5915-01-196-8917
NSN 5935-01-522-4879
NSN 5965-00-493-6008
NSN 5998-01-565-0420