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 9/16 in Nominal Width 3/32 in Actual Inside Dia 0.549 in Actual Width 0.103 in Dash Number 113 Color Red Durometer 70 Shore A Meets/Exceeds ASTM D2000 -VQM 70 FDA 21 CFR 177.2600 Nominal Outside Dia 3/4 in Actual Outside Dia 0.755 in Temp Range -65 Degrees to +400 Degrees F FDA Approved Yes