This little gasket fits over the impeller screw and is snugged into place against the impeller when the screw is tightened

This stainless steel impeller screw (left-hand threads) screws onto the end of the motor shaft to secure the impeller from spinning off of the Sta-rite Maxi-Glass 1hp & 2hp pumps that were used in Hot Spring spas prior to 1994

This screw is used to secure the volute to the pump base 70959