A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5920-01-311-2201
NSN 6135-01-121-3225
NSN 5999-01-075-0649
NSN 5855-01-421-7691
NSN 5998-00-068-4447
NSN 6130-00-800-9153
NSN 6135-00-491-9864
NSN 6150-00-276-7483
NSN 6145-01-487-3773
NSN 6320-01-492-1976
NSN 7035-01-138-5781
NSN 6610-01-512-2025
Last Updated: 07/17/2025