A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5999-01-486-0143
NSN 6105-00-019-3801
NSN 6240-00-062-6174
NSN 5855-00-198-3197
NSN 6150-00-957-7264
NSN 6110-00-909-1030
NSN 5895-01-275-7223
NSN 6150-01-502-6669
NSN 5965-01-502-7006
NSN 5985-01-273-4221
NSN 5998-01-288-0278
NSN 6645-01-130-5581