65410 Western Pro-Flo Fisher Speed-Caster Steel Spreader Spinner Disc

A New Spinner Disc # 65410.

Western uses this spinner on the Pro-Flo as well as the Fisher Speed-Caster. This spinner is steel. It measures 11-3/4" across from side to side and 15-1/4" from corner to corner. The center hole is 3/4". There are four fins 7/8" tall and they are clockwise. 

They also offer a poly version which is # 94594.

If you need the bolt to attach it to the shaft, that is 90977. It measures 5/16" x 1-1/2". 

You can find related diagrams and parts lists at this link.