A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6240-01-046-4363
NSN 5855-00-879-5849
NSN 6220-01-444-1692
NSN 5965-01-042-2001
NSN 6220-00-361-8338
NSN 5990-01-421-5342
NSN 4140-01-544-3312
NSN 5855-01-566-5320
NSN 2925-01-301-9339
NSN 5990-01-152-3974
NSN 5985-01-260-1475
NSN 5985-00-722-3791