External Light Duty Spiral Ring System of Measurement Inch Location Style External Thickness 0.021 in Fits Shaft Diameter 7/8 in For Bore Diameter Not Applicable Fits Groove Diameter 0.833 in Fits Groove Width 0.026 in Fits Groove Depth 0.021 in Free Inside Diameter 0.825 in Free Outside Diameter Not Applicable Clearance Diameter Not Applicable Material Stainless Steel Material Grade/Class 18-8 Tensile Strength Not Applicable Ring Type External Light Duty Spiral Ring