A nut having wings designed for manual turning without driver or wrench.
NSN 6610-01-437-2506
NSN 4140-00-854-8871
NSN 4140-01-159-4462
NSN 6145-00-957-0778
NSN 6620-00-770-9794
NSN 6105-00-953-2893
NSN 6650-01-615-5374
NSN 6685-01-158-6081
NSN 5935-01-269-5035
NSN 5920-01-417-1928
NSN 5925-01-362-8044
NSN 5975-00-053-8771