O-Ring Silicone AS568 Dash Number 426 Actual Width 0.275 In. Actual Inside Dia 4.600 In. Outside Dia 5.150 In. Cross Section Shape Round Durometer Rating Medium Hard Durometer 70 Shore A Nominal Width 1/4 In. Nominal Inside Dia 4-5/8 In. Nominal Outside Dia 5-1/8 In. Color Red Temp Range -65 Degrees to 450 Degrees F Meets/Exceeds SAE J200 ASTM D2000 FDA Approved Package Quantity 5