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 11/16 in Nominal Width 3/32 in Actual Inside Dia 1.674 in Actual Width 0.103 in Dash Number 131 Color White Durometer 55 Shore D Nominal Outside Dia 1 7/8 in Actual Outside Dia 1.88 in Temp Range -300 Degrees to 500 Degrees F FDA Approved Yes Package Quantity 5