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 1 5/8 in Nominal Width 1/16 in Actual Inside Dia 1.614 in Actual Width 0.07 in Dash Number 030 Color White Durometer 55 Shore D Nominal Outside Dia 1 3/4 in Actual Outside Dia 1.754 in Temp Range -300 Degrees to 500 Degrees F FDA Approved Yes Package Quantity 10