O-Ring, No Metal Detectable, No X-Ray Detectable, System of Measurement Inch, Cross Section Shape Round, O-Ring Material FEP with Silicone Core, Durometer (Hardness) Rating Hard, Nominal Inside Dia. 1 3/8 in, Nominal Width 1/8 in, Actual Inside Dia. 1.359 in, Actual Width 0.139 in, Dash Number 220, Color Clear with Red Core, Durometer 85 Shore A, Meets/Exceeds ASTM D2116, Nominal Outside Dia. 1 5/8 in, Actual Outside Dia. 1.637 in, Temp. Range -75 Degrees to 400 Degrees F, Yes