A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5895-01-004-9050
NSN 5998-01-290-0606
NSN 5960-01-641-5493
NSN 6645-00-470-5310
NSN 5950-01-113-7834
NSN 5960-01-127-0246
NSN 6620-00-140-8644
NSN 5915-00-150-4694
NSN 5998-00-317-7215
NSN 5996-01-157-7728
NSN 5990-01-573-1634
NSN 5996-01-209-5886