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 0.23 in, Fits Groove Width 0.029 in, Fits Groove Depth Not Applicable, Free Inside Diameter Not Applicable, Clearance Diameter 0.25 in, Material Steel, Finish Plain, Material Grade/Class Ungraded, Tensile Strength Not Applicable, Ring Type External Retaining Ring