Retaining Ring,External,0.025 In. Thk,PK50, System of Measurement Not Applicable, Location Style External, Thickness 0.025 in, Fits Shaft Diameter 11/64 in, For Bore Diameter Not Applicable, Fits Groove Diameter 0.53 in, Fits Groove Width 0.039 in, Fits Groove Depth Not Applicable, Free Inside Diameter Not Applicable, Free Outside Diameter 0.548 in, Clearance Diameter 0.1719 in, Material Steel, Finish Plain, Material Grade/Class Ungraded, Tensile Strength Not Applicable