O-Ring No Metal Detectable No X-Ray Detectable System of Measurement Inch Cross Section Shape Round O-Ring Material Viton Durometer (Hardness) Rating Medium Hard Nominal Inside Dia 7/8 in Nominal Width 1/16 in Actual Inside Dia 0.8 in Actual Width 0.07 in Dash Number 020 Color Brown Durometer 75 Shore A Nominal Outside Dia 1 in Actual Outside Dia 1.004 in Temp Range -15 Degrees to 400 Degrees F FDA Approved No