No other part numbers with same form, fit, and function found.
A nut having wings designed for manual turning without driver or wrench.
NSN 5990-01-591-8797
NSN 4140-01-431-6543
NSN 5925-01-363-9925
NSN 6620-01-050-2866
NSN 5835-01-620-0675
NSN 6105-01-431-4409
NSN 5930-01-622-2407
NSN 6135-00-152-8729
NSN 6130-01-276-9385
NSN 5950-01-094-5139
NSN 5855-01-042-7990
NSN 6320-01-358-0141