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 4 1/2 in Nominal Width 1/16 in Actual Inside Dia 4.4 in Actual Width 0.07 in Dash Number 047 Color Brown Durometer 75 Shore A Nominal Outside Dia 4 5/8 in Actual Outside Dia 4.629 in Temp Range -15 Degrees to 400 Degrees F FDA Approved No