O-Ring No Metal Detectable No X-Ray Detectable System of Measurement Inch Cross Section Shape Round O-Ring Material Polyurethane Durometer (Hardness) Rating Medium Hard Nominal Inside Dia 1 1/8 in Nominal Width 1/8 in Actual Inside Dia 1.109 in Actual Width 0.139 in Dash Number 216 Color Black Durometer 70 Shore A Meets/Exceeds ASTM D2000 SAE J200 Nominal Outside Dia 1 3/8 in Actual Outside Dia 1.387 in Temp Range -40 Degrees to 180 Degrees F FDA Approved No