O-Ring Yes Metal Detectable No X-Ray Detectable System of Measurement Inch Cross Section Shape Round O-Ring Material Silicone Durometer (Hardness) Rating Medium Hard Nominal Inside Dia 1 3/8 in Nominal Width 1/16 in Actual Inside Dia 1.3 in Actual Width 0.07 in Dash Number 028 Color Red Durometer 70 Shore A Meets/Exceeds FDA Nominal Outside Dia 1 1/2 in Actual Outside Dia 1.504 in Temp Range -80 Degrees to 450 Degrees F FDA Approved Yes