Poodle Retaining Ring,0.05 In. Thk,PK50, System of Measurement Inch, Location Style External, Thickness 0.05 in, Fits Shaft Diameter 7/16 in, For Bore Diameter Not Applicable, Fits Groove Diameter 0.39 in, Fits Groove Width 0.056 in, Fits Groove Depth 0.024 in, Free Inside Diameter 0.375 in, Free Outside Diameter 0.752 in, Clearance Diameter 0.79 in, Material Steel, Finish Black Phosphate, Material Grade/Class Ungraded, Tensile Strength 150,000 psi, Ring Type Poodle-Style Retaining Ring