O-Ring No Metal Detectable No X-Ray Detectable System of Measurement Inch Cross Section Shape Round O-Ring Material Buna N Durometer (Hardness) Rating Medium Hard Nominal Inside Dia 1 13/16 in Nominal Width 3/32 in Actual Inside Dia 1.799 in Actual Width 0.103 in Dash Number 133 Color Black Durometer 70 Shore A Meets/Exceeds ASTM D2000 NBR 70 Nominal Outside Dia 2 in Actual Outside Dia 2.005 in FDA Approved No Package Quantity 10