' O-Ring, Viton, AS568 Dash Number 904, Actual Width 0.072 In., Actual Inside Dia. 0.351 In., Outside Dia. 0.495 In., Cross Section Shape Round, Durometer Rating Hard, Durometer 90 Shore A, Nominal Outside Dia. 1/4 In., Color Black, Temp. Range -15 Degrees to 400 Degrees F, Meets/Exceeds SAE J200, ASTM D2000, Package Quantity 25 '