Retaining Ring Internal 0.125 in Thk System of Measurement Not Applicable Location Style Internal Thickness 0.125 in Fits Shaft Diameter Not Applicable For Bore Diameter 5 1/2 in Fits Groove Diameter 5.77 in Fits Groove Width 0.139 in Fits Groove Depth Not Applicable Free Inside Diameter Not Applicable Free Outside Diameter 6.066 in Clearance Diameter 5.5 in Material Steel Finish Plain Material Grade/Class Ungraded Tensile Strength Not Applicable Ring Type Retaining Ring