This EPDM O-Ring has a diameter of 31x2.5 mm and is Black in color. The hardness of this O-ring 31x2.5 - EPDM - Sulfur - 70 Shore A - Black - ORS5767 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 16823 are referred to as 5767 and have a DIN 3771 size of 31x2.5. This item is equivalent to and has an approval. The chemical name of this O-Ring is Ethyleen Propyleen Diheen Monomeer.