Retaining Ring,External,0.015 In. Thk,PK50, System of Measurement Not Applicable, Location Style External, Thickness 0.015 in, Fits Shaft Diameter 7/16 in, For Bore Diameter Not Applicable, Fits Groove Depth Not Applicable, Free Inside Diameter Not Applicable, Free Outside Diameter 0.737 in, Clearance Diameter 0.4375 in, Material Steel, Finish Plain, Material Grade/Class Ungraded, Tensile Strength Not Applicable, Ring Type Self-Locking Retaining Ring, Shank Diameter Not Applicable