No other part numbers with same form, fit, and function found.
A nut having wings designed for manual turning without driver or wrench.
NSN 5920-01-551-0841
NSN 6240-01-631-5756
NSN 5935-00-905-3370
NSN 6240-01-414-6074
NSN 6135-00-715-4001
NSN 6145-00-929-1817
NSN 6150-01-606-9493
NSN 6220-00-925-2233
NSN 6110-01-282-5268
NSN 6135-01-478-9316
NSN 6135-01-110-9470
NSN 6240-00-089-4007