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 2 41/64 in Nominal Width 1/16 in Actual Inside Dia 2.643 in Actual Width 0.183 in Color White Durometer 55 Shore D Nominal Outside Dia 11/32 in Actual Outside Dia 3.009 in Temp Range -100 Degrees to 500 Degrees F FDA Approved Yes Package Quantity 10