A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5999-00-168-1888
NSN 6135-01-205-5965
NSN 5915-00-274-2282
NSN 6610-00-365-4454
NSN 6645-01-045-3269
NSN 6130-00-997-7441
NSN 4140-01-323-0108
NSN 5895-01-610-5511
NSN 5985-00-683-5592
NSN 6105-01-445-6130
NSN 6150-00-872-4634
NSN 6135-01-222-0703