A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 4140-01-617-6691
NSN 5905-01-370-4989
NSN 4140-01-141-6526
NSN 5895-01-444-1387
NSN 6610-00-597-5671
NSN 5925-01-468-7146
NSN 5999-01-478-3256
NSN 5960-01-071-4308
NSN 5910-00-938-7227
NSN 6240-01-218-5187
NSN 5895-00-827-2095
NSN 6130-01-391-1100