This FKM - FPM - Viton® GF O-Ring has a diameter of 28.5x1.8 mm and is Black in color. The hardness of this O-ring 28.5x1.8 - FKM - FPM - Viton® GF / AED - 90 Shore A - Black - ORS303061 is 90. Alternative names for the compound are Viton® - FKM, and it is commonly produced by Viton® | Tecnoflon® | Fluorel® | Dai-El® | Fluon®. The O-Ring is typically used in and has an operating temperature range from -20 ºC to 250 ºC. O-Rings 989848 are referred to as 303061 and have a DIN 3771 size of 28.5x1.8. This item is equivalent to and has an GF / AED approval. The chemical name of this O-Ring is Fluorcarbonrubber / Fluorrubber / Fluorpolymeer-elastomeer.