O-Ring No Metal Detectable No X-Ray Detectable System of Measurement Inch Cross Section Shape Round O-Ring Material Fluorosilicone Durometer (Hardness) Rating Medium Hard Nominal Inside Dia 1 3/4 in Nominal Width 1/8 in Actual Inside Dia 1.7 in Actual Width 0.139 in Dash Number 224 Color Blue Durometer 70 Shore A Nominal Outside Dia 2 in Actual Outside Dia 2.012 in Temp Range -80 Degrees to 480 Degrees F FDA Approved No