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 11/16 in Nominal Width 3/32 in Actual Inside Dia 0.674 in Actual Width 0.103 in Dash Number 115 Color Black Durometer 70 Shore A Meets/Exceeds ASTM D2000 SAE J200 Nominal Outside Dia 7/8 in Actual Outside Dia 0.88 in Temp Range -40 Degrees to 180 Degrees F FDA Approved No