Retaining Ring External 0.025 in Thk PK50 System of Measurement Not Applicable Location Style External Thickness 0.025 in Fits Shaft Diameter 1/4 in For Bore Diameter Not Applicable Fits Groove Diameter 1.066 in Fits Groove Width 0.046 in Fits Groove Depth Not Applicable Free Inside Diameter Not Applicable Free Outside Diameter 1.111 in Clearance Diameter 0.25 in Material Steel Finish Plain Material Grade/Class Ungraded Tensile Strength Not Applicable Ring Type Retaining Ring