A nut having wings designed for manual turning without driver or wrench.
NSN 6645-01-602-0000
NSN 5998-00-929-5184
NSN 6685-00-459-4593
NSN 5910-01-521-3684
NSN 6240-00-283-0147
NSN 6620-01-612-9030
NSN 5950-01-323-8603
NSN 6150-01-128-0198
NSN 5925-01-064-9884
NSN 6110-01-363-5126
NSN 6620-01-160-8517
NSN 6130-01-025-5546