O-Ring No Metal Detectable No X-Ray Detectable System of Measurement Inch Cross Section Shape Round O-Ring Material Polyurethane Durometer (Hardness) Rating Medium Hard Nominal Inside Dia 5/32 in Nominal Width 1/16 in Actual Inside Dia 0.145 in Actual Width 0.07 in Dash Number 007 Color Black Durometer 70 Shore A Meets/Exceeds ASTM D2000 SAE J200 Nominal Outside Dia 9/32 in Actual Outside Dia 0.285 in Temp Range -40 Degrees to 180 Degrees F FDA Approved No