This EPDM O-Ring has a diameter of 26.7x1.78 mm and is Black in color. The hardness of this O-ring 26.7x1.78 - EPDM - Peroxide - 80 Shore A - Black - ORS209861 is 80. Alternative names for the compound are , and it is commonly produced by Keltan® | Nordel® | Vistalon® | Dutral® | Buna EP® | Mitsui EPT® | Kumho Polychem EP® | JSR EP® | Royalene®. The O-Ring is typically used in and has an operating temperature range from -55 ºC to 150 ºC. O-Rings 472028 are referred to as 209861 and have a DIN 3771 size of 26.7x1.78. This item is equivalent to and has an approval. The chemical name of this O-Ring is Ethylene propylene diene monomer.