Internal Medium Duty Spiral Ring System of Measurement Inch Location Style Internal Thickness 0.043 in Fits Groove Diameter 1.489 in Fits Groove Width 0.048 in Fits Groove Depth 0.026 in Free Outside Diameter 1.504 in Material Steel Finish Plain Material Grade/Class Not Graded Ring Type Internal Med Duty Spiral Ring Clearance Diameter Type Free OD Thickness Tolerance +/-0.002 in Standards REACH Compliant RoHS Compliant Groove Width Tolerance +/-0.004/0.000 In.