Retaining Ring External 0.109 in Thk System of Measurement Inch Location Style External Thickness 0.109 in Fits Shaft Diameter 4 1/8 in For Bore Diameter Not Applicable Fits Groove Diameter 3.915 in Fits Groove Width 0.12 in Free Inside Diameter 3.8 in Material Steel Finish Plain Material Grade/Class Grade 1060/Grade 1090 Ring Type External Retaining Ring Pack Size Small Pack Manufacturer Location Globally Sourced Ring Sub-Type Standard