A nut having wings designed for manual turning without driver or wrench.
NSN 2925-00-233-5644
NSN 2925-01-320-6512
NSN 5960-01-017-0989
NSN 4140-01-546-6383
NSN 6110-00-111-2761
NSN 5998-01-062-1404
NSN 5915-00-486-0928
NSN 6620-01-158-0497
NSN 6645-01-382-7341
NSN 6105-01-506-7351
NSN 6620-01-498-4780
NSN 5895-01-052-4877