Internal Heavy Duty Spiral Ring System of Measurement Inch Location Style Internal Thickness 0.062 in Fits Groove Diameter 1.792 in Fits Groove Width 0.068 in Fits Groove Depth 0.052 in Free Outside Diameter 1.81 in Material Steel Finish Plain Material Grade/Class Not Graded Ring Type Internal Heavy Duty Spiral Ring Clearance Diameter Type Free OD Thickness Tolerance +/-0.003 in Standards REACH Compliant RoHS Compliant Groove Width Tolerance +/-0.004/0.000 In.