This FKM - FPM - Viton® O-Ring has a diameter of 135x4 mm and is Brown in color. The hardness of this O-ring 135x4 - FKM - FPM - Viton® - 80 Shore A - Brown - ORS5979 is 80. 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 17102 are referred to as 5979 and have a DIN 3771 size of 135x4. This item is equivalent to and has an approval. The chemical name of this O-Ring is Fluorcarbonrubber / Fluorrubber / Fluorpolymeer-elastomeer.