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 4 1/2 in Nominal Width 1/16 in Actual Inside Dia 4.489 in Actual Width 0.07 in Dash Number 047 Color Black Durometer 70 Shore A Meets/Exceeds ASTM D2000 SAE J200 Nominal Outside Dia 4 5/8 in Actual Outside Dia 4.629 in Temp Range -65 Degrees to 300 Degrees F FDA Approved No Package Quantity 10