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 2 3/16 in Nominal Width 3/32 in Actual Inside Dia 2.175 in Actual Width 0.103 in Dash Number 139 Color White Durometer 55 Shore D Nominal Outside Dia 2 3/8 in Actual Outside Dia 2.381 in Temp Range -300 Degrees to 500 Degrees F FDA Approved Yes Package Quantity 5