A nut having wings designed for manual turning without driver or wrench.
NSN 6650-01-393-9612
NSN 6135-00-299-6918
NSN 5915-00-514-2098
NSN 6130-01-257-8331
NSN 6650-01-633-9147
NSN 5920-00-594-3124
NSN 5999-00-537-6632
NSN 6135-00-995-1089
NSN 6150-00-045-3900
NSN 6110-00-394-3579
NSN 6105-01-436-5053
NSN 5999-01-592-4527