Mower blade adapter key
I failed to put the hardened washer and lock washer on when I replaced the blade on my sp mower. The blade adapter broke (big chunk around the key) and I finally found a replacement adapter. The key is the circle sector type and I need to know if the flat part goes into the motor shaft keyway or into the blade adapter keyway. I have new washers and will never forget to put them on again. Thanks for your help.