Basic Internal Ring System of Measurement Inch Location Style Internal Thickness 0.078 in Fits Groove Diameter 2.171 in Fits Groove Width 0.086 in Fits Groove Depth 0.062 in Free Outside Diameter 2.28 in Material Stainless Steel Finish Plain Material Grade/Class Not Graded Ring Type Internal Ring Clearance Diameter Type Free OD Thickness Tolerance +/-0.003 in Standards REACH Compliant RoHS Compliant Groove Width Tolerance +/-0.005/0.000 in Groove Diameter Tolerance +/-0.006 in