A nut having wings designed for manual turning without driver or wrench.
NSN 5999-01-067-9504
NSN 6620-01-098-9866
NSN 6145-00-161-1611
NSN 5930-01-634-0659
NSN 6135-00-738-5571
NSN 5935-01-076-2746
NSN 6645-00-274-5670
NSN 5990-01-157-0441
NSN 5895-00-138-4852
NSN 6320-01-504-3948
NSN 5999-00-226-5657
NSN 5910-01-033-9255