Choose the Stainless Steel Replacement "Wing Nut Impeller Coupling" based on the model number of your bread maker.

Fits: on the bottom end of the pan's shaft of the bread machine models below:
Hitachi Breadmaker
Automatic Dough and Bread Maker Machine 
Model Numbers: HB-D as in Dog, HB-D102, HB-D103, HB-D301

If you have any questions, please ask before you buy.

Thank You,
Bread Machine Parts Finder