C22 and L22 Sickle Bar Mower Bearing Nut for a Farmall Cub Tractor.
The head of the nut shows some wear. It has good threads.
For use with Flywheel Part Number 451399R1.
Case IH part number M305.
Also used on C-21, C-24, F-21, F-24, HM-24, A1-23 and many other IHC sickle bar mowers