Retaining Ring,External,0.042 In. Thk,PK50, System of Measurement Not Applicable, Location Style External, Thickness 0.042 in, Fits Shaft Diameter 7/8 in, For Bore Diameter Not Applicable, Fits Groove Diameter 0.821 in, Fits Groove Width 0.046 in, Fits Groove Depth Not Applicable, Free Inside Diameter Not Applicable, Clearance Diameter 0.875 in, Material Steel, Finish Plain, Material Grade/Class Ungraded, Tensile Strength Not Applicable, Ring Type External Retaining Ring