O-Ring, Not Metal Detectable Metal Detectable, Not X-Ray Detectable X-Ray Detectable, System of Measurement Inch, Cross Section Shape Round, O-Ring Material Buna N, Durometer (Hardness) Rating Medium Hard, Nominal Inside Dia. 26 in, Nominal Width 3/16 in, Actual Inside Dia. 25.94 in, Actual Width 0.21 in, Dash Number 395, Color Black, Durometer 70A, Meets/Exceeds ASTM D2000, SAE J200, Nominal Outside Dia. 26 3/8 in, Actual Outside Dia. 26.36 in, Temp. Range -40 Degrees to 250 Degrees F