A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5945-01-551-0654
NSN 5945-00-110-4946
NSN 5920-01-376-3924
NSN 6150-00-081-9928
NSN 5930-00-972-6487
NSN 5996-00-236-7712
NSN 5920-01-283-7042
NSN 6240-00-975-0868
NSN 5905-01-025-1329
NSN 5895-00-065-6731
NSN 5935-00-405-4161
NSN 6645-01-439-4240