A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5990-01-449-7090
NSN 5990-00-888-7761
NSN 6145-01-181-4142
NSN 5945-01-065-0887
NSN 5920-01-206-3977
NSN 6650-00-668-5703
NSN 6240-01-530-6769
NSN 6240-01-384-3887
NSN 6610-01-092-7554
NSN 6650-00-449-6983
NSN 6620-01-461-3550
NSN 5925-01-107-5065