O-Ring No Metal Detectable No X-Ray Detectable System of Measurement Inch Cross Section Shape Round O-Ring Material PTFE Durometer (Hardness) Rating Very Hard Nominal Inside Dia 5/64 in Nominal Width 1/16 in Actual Inside Dia 0.07 in Actual Width 0.07 in Dash Number 004 Color White Durometer 55 Shore D Nominal Outside Dia 13/64 in Actual Outside Dia 0.21 in Temp Range -300 Degrees to 500 Degrees F FDA Approved Yes Package Quantity 25