O-Ring No Metal Detectable No X-Ray Detectable System of Measurement Inch Cross Section Shape Round O-Ring Material EPDM Durometer (Hardness) Rating Medium Hard Nominal Inside Dia 2 in Nominal Width 1/8 in Actual Inside Dia 1.984 in Actual Width 0.139 in Dash Number 226 Color Black Durometer 70 Shore A Meets/Exceeds ASTM D2000 SAE J200 Nominal Outside Dia 2 1/4 in Actual Outside Dia 2.262 in Temp Range -65 Degrees to 300 Degrees F FDA Approved No Package Quantity 25