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 1/4 in Nominal Width 1/16 in Actual Inside Dia 0.239 in Actual Width 0.07 in Dash Number 010 Color Black Durometer 70 Shore A Meets/Exceeds ASTM D2000 SAE J200 Nominal Outside Dia 3/8 in Actual Outside Dia 0.379 in Temp Range -65 Degrees to 300 Degrees F FDA Approved No Package Quantity 100