This HNBR O-Ring has a diameter of 28.3x1.78 mm and is Green in color. The hardness of this O-ring 28.3x1.78 - HNBR - 80 Shore A - Green - ORS209761 is 80 Shore A. Alternative names for the compound are Hydrogenated nitrile rubber, and it is commonly produced by . The O-Ring is typically used in and has an operating temperature range from 7104 ºC to 7104 ºC. O-Rings 467802 are referred to as 209761 and have a DIN 3771 size of 28.3x1.78. This item is equivalent to and has an approval. The chemical name of this O-Ring is Hydrogenated Nitrile Butadiene Rubber.