O-Ring No Metal Detectable No X-Ray Detectable System of Measurement Inch Cross Section Shape Round O-Ring Material Kalrez 7075 Durometer (Hardness) Rating Medium Hard Nominal Inside Dia 1/2 in Nominal Width 1/16 in Actual Inside Dia 0.4 in Actual Width 0.07 in Dash Number 014 Color Black Durometer 75 Shore A Nominal Outside Dia 5/8 in Actual Outside Dia 0.629 in Temp Range 30 Degrees to 625 Degrees F FDA Approved No