A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5835-00-334-6556
NSN 6145-01-020-7722
NSN 5975-00-830-4134
NSN 6150-00-997-5861
NSN 5990-00-110-1153
NSN 6650-00-016-9426
NSN 5920-01-483-0533
NSN 6220-01-034-1231
NSN 5950-01-450-2766
NSN 6150-00-715-4661
NSN 6105-00-563-5398
NSN 6220-00-880-7806