O-Ring No Metal Detectable No X-Ray Detectable System of Measurement Inch Cross Section Shape Round O-Ring Material Silicone Durometer (Hardness) Rating Medium Hard Nominal Inside Dia 25 in Nominal Width 3/16 in Actual Inside Dia 2.09 in Actual Width 0.118 in Dash Number 928 Color Red Durometer 70 Shore A Meets/Exceeds ASTM D2000 FDA Approved SAE J200 Nominal Outside Dia 25 3/8 in Actual Outside Dia 2.326 in Temp Range -65 Degrees to 450 Degrees F FDA Approved Yes