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 5/8 in Nominal Width 3/32 in Actual Inside Dia 0.612 in Actual Width 0.103 in Dash Number 114 Color Clear with Red Core Durometer 85 Shore A Meets/Exceeds ASTM D2116 Nominal Outside Dia 13/16 in Actual Outside Dia 0.818 in Temp Range -75 Degrees to 400 Degrees F FDA Approved Yes