Internal Light Duty Spiral Ring System of Measurement Inch Location Style Internal Thickness 0.021 in Fits Shaft Diameter Not Applicable For Bore Diameter 13/16 in Fits Groove Diameter 0.854 in Fits Groove Width 0.026 in Fits Groove Depth 0.021 in Free Inside Diameter Not Applicable Free Outside Diameter 0.862 in Clearance Diameter Not Applicable Material Stainless Steel Material Grade/Class 18-8 Tensile Strength Not Applicable Ring Type Internal Light Duty Spiral Ring