O-Ring Viton AS568 Dash Number 340 Actual Width 0.210 In. Actual Inside Dia 3.350 In. Outside Dia 3.770 In. Cross Section Shape Round Durometer Rating Medium Hard Durometer 90 Shore A Nominal Width 3/16 In. Nominal Inside Dia 3-3/8 In. Nominal Outside Dia 3-3/4 In. Color Black Temp Range -15 Degrees to 400 Degrees F Meets/Exceeds SAE J200 ASTM D2000 Package Quantity 5