A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6150-01-172-4109
NSN 6685-01-419-8934
NSN 6320-01-054-3046
NSN 6645-00-487-5169
NSN 5920-01-157-9471
NSN 6130-01-382-0729
NSN 6645-01-502-3068
NSN 5855-01-477-9629
NSN 6320-00-886-9771
NSN 5915-01-096-2923
NSN 5855-00-117-0857
NSN 5960-00-211-2105