Housing Ring Internal 0.106 in Thk System of Measurement Inch Location Style Internal Thickness 0.106 in Fits Shaft Diameter Not Applicable For Bore Diameter 3 15/16 in Fits Groove Diameter 3.782 in Fits Groove Width 0.12 in Fits Groove Depth 0.107 in Free Inside Diameter Not Applicable Free Outside Diameter 3.991 in Clearance Diameter 3.06 in Material Spring Steel Finish Black Phosphate Material Grade/Class Ungraded Tensile Strength Not Applicable Ring Type Housing Ring