This EPDM O-Ring has a diameter of 37.69x3.53 mm and is Black in color. The hardness of this O-ring 37.69x3.53 - EPDM - Sulfur - 70 Shore A - Black - ORS5777 is 70. 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 -40 ºC to 125 ºC. O-Rings 16839 are referred to as 5777 and have a DIN 3771 size of 37.69x3.53. This item is equivalent to and has an approval. The chemical name of this O-Ring is Ethyleen Propyleen Diheen Monomeer.