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, Nominal Inside Dia. 16 in, Nominal Width 1/8 in, Actual Inside Dia. 15.955 in, Actual Width 0.139 in, Dash Number 282, Color Black, Durometer 90 Shore A, Meets/Exceeds ASTM D2000, SAE J200, Nominal Outside Dia. 16 1/4 in, Actual Outside Dia. 16.233 in, Temp. Range -25 Degrees to 250 Degrees F, FDA Approved No, Package Quantity 2