A nut having wings designed for manual turning without driver or wrench.
NSN 5998-00-407-0508
NSN 4140-00-659-8283
NSN 5925-01-447-6549
NSN 5935-01-360-1479
NSN 6220-01-629-7149
NSN 5920-01-620-6564
NSN 5925-00-816-9929
NSN 6105-01-033-3649
NSN 6135-00-593-6831
NSN 2925-01-658-9457
NSN 5895-01-135-2268
NSN 6685-00-011-1998