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. 7/16 in, Nominal Width 3/32 in, Actual Inside Dia. 0.4 in, Actual Width 0.103 in, Dash Number 111, Color Red, Durometer 70 Shore A, Meets/Exceeds FDA, Nominal Outside Dia. 5/8 in, Actual Outside Dia. 0.63 in, Temp. Range -80 Degrees to 450 Degrees F, FDA Approved Yes