Retaining Ring External 0.025 in Thk PK50 System of Measurement Not Applicable Location Style External Thickness 0.025 in Fits Shaft Diameter 13/32 in For Bore Diameter Not Applicable Fits Groove Diameter 0.382 in Fits Groove Width 0.029 in Fits Groove Depth Not Applicable Free Inside Diameter Not Applicable Free Outside Diameter 0.522 in Clearance Diameter 0.4063 in Material Steel Finish Plain Material Grade/Class Ungraded Tensile Strength Not Applicable