O-Ring No Metal Detectable No X-Ray Detectable System of Measurement Inch Cross Section Shape Rectangular O-Ring Material PTFE Durometer (Hardness) Rating Very Hard Nominal Inside Dia 9/64 in Actual Inside Dia 0.14 in Actual Width 0.053 in Color White Durometer 55 Shore D Actual Outside Dia 0.246 in Temp Range -100 Degrees to 500 Degrees F FDA Approved Yes Package Quantity 50