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 7/8 in Nominal Width 1/16 in Actual Inside Dia 0.864 in Actual Width 0.07 in Dash Number 020 Color Red Durometer 70 Shore A Meets/Exceeds ASTM D2000 FDA Approved SAE J200 Nominal Outside Dia 1 in Actual Outside Dia 1.004 in Temp Range -65 Degrees to +400 Degrees F FDA Approved Yes