The MTD 09261009 is a genuine OEM blade mounting washer designed to securely fasten mower blades to the spindle assembly on a wide range of MTD family brand lawn mowers and tractors. This critical component ensures proper blade alignment and safe operation, preventing blade slippage during use. It is a direct replacement for original parts and is compatible with numerous models from brands such as MTD, Cub Cadet, Troy-Bilt, Yard-Man, and others. Replaces MTD part numbers 736-0119 and 736-0119P.