33 mm, Actual Outside Dia.
. O-Ring,Buna N,33mm OD,PK50 Range -40 Degrees to 250 Degrees F, FDA Approved No, Package Quantity 50 27 mm, Actual Width 3 mm, Color Black, Durometer 70 Shore A, Meets/Exceeds ASTM D2000, SAE J200, Nominal Outside Dia. 27 mm, Nominal Width 3 mm, Actual Inside Dia.