O-Ring No Metal Detectable No X-Ray Detectable System of Measurement Inch Cross Section Shape Round O-Ring Material Aflas Durometer (Hardness) Rating Medium Hard Nominal Inside Dia 13/16 in Nominal Width 1/16 in Actual Inside Dia 0.8 in Actual Width 0.07 in Dash Number 019 Color Black Durometer 80 Shore A Nominal Outside Dia 15/16 in Actual Outside Dia 0.941 in Temp Range 30 Degrees to 450 Degrees F FDA Approved No