O-Ring Viton AS568 Dash Number 266 Actual Width 0.139 In. Actual Inside Dia 7.984 In. Outside Dia 8.262 In. Cross Section Shape Round Durometer Rating Medium Hard Durometer 90 Shore A Nominal Width 1/8 In. Nominal Inside Dia 8 In. Nominal Outside Dia 8-1/4 In. Color Black Temp Range -15 Degrees to 400 Degrees F Meets/Exceeds SAE J200 ASTM D2000 Package Quantity 2