Arbor Shim PVC Thickness 0.0125 In Thickness 0.318mm Thickness Tolerance +/-0.000625 In Inside Dia 1 1/2 In ID Tolerance +0.015 In Outside Dia 2 1/8 In OD Tolerance +/-0.005 In Temperature Range -10 to 155 F Black Tensile Strength 6600 PSI Rockwell Hardness Not Rated Meets MS LP-535 Package 10