O-Ring, No Metal Detectable, No X-Ray Detectable, System of Measurement Inch, Cross Section Shape Round, O-Ring Material Buna N, Durometer (Hardness) Rating Very Hard, Actual Inside Dia. 1.72 in, Actual Width 0.118 in, Dash Number 924, Color Black, Durometer 90 Shore A, Meets/Exceeds ASTM D2000, SAE J200, Nominal Outside Dia. 1 1/2 in, Actual Outside Dia. 1.956 in, Temp. Range -15 Degrees to 400 Degrees F, No, Package Quantity 100