Atlas Craftsman 10" 12" Metal Lathe Change Gear Bolt Spacer Part 9-113A 

Replacement for Atlas part number 9-113A

3D PRINTED IN PLASTIC TO EXACT SPECIFICATIONS ATLAS CRAFTSMAN 10-12 INCH LATHE

Width = .500 (1/25")

Keyed center bore = .750" (3/4")

Double Keyway  (180 degrees apart) = .188" (3/16")