A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 2925-01-261-0701
NSN 6105-01-644-4612
NSN 5950-00-673-8280
NSN 5925-00-824-0329
NSN 5915-01-426-8862
NSN 5999-01-075-4811
NSN 6620-01-621-0719
NSN 6135-01-299-7252
NSN 6650-01-500-1756
NSN 5930-01-546-1023
NSN 6610-00-087-2434
NSN 6620-00-456-0404