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. 61/64 in, Actual Inside Dia. 0.953 in, Actual Width 0.119 in, Color White, Durometer 55 Shore D, Actual Outside Dia. 1.191 in, Temp. Range -100 Degrees to 500 Degrees F, Yes, Package Quantity 50