This HNBR O-Ring has a diameter of 7.66x1.78 mm and is Green in color. The hardness of this O-ring 7.66x1.78 - HNBR - 80 Shore A - Green - ORS50125 is 80 Shore A. Alternative names for the compound are Hydrogenated Nitrile Butadiene Rubber, and it is commonly produced by LG Chem - Lanxess and Zeon. The O-Ring is typically used in and has an operating temperature range from -25 ºC to 150 ºC. O-Rings 467740 are referred to as 50125 and have a DIN 3771 size of 7.66x1.78. This item is equivalent to and has an None approval. The chemical name of this O-Ring is Hydrogenated nitrile rubber.