A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6645-01-545-6853
NSN 6645-00-342-5956
NSN 5905-00-032-0019
NSN 5910-01-507-8817
NSN 5835-01-162-5224
NSN 4140-00-100-4563
NSN 2925-01-250-2731
NSN 5965-01-088-5414
NSN 5945-00-470-7446
NSN 5920-01-517-2868
NSN 5960-00-018-3477
NSN 5999-01-649-0874