This FKM - FPM - Viton® O-Ring has a diameter of 18 x 1 mm and is Black in color. The hardness of this O-ring 18x1 - FKM - FPM - Viton® - Superior - FDA - EC1935/2004 - USP Class VI - BAM - 70 Shore A - Black - ORS222868 is 70. Alternative names for the compound are , 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 -25 ºC to 200 ºC. O-Rings 6590997 are referred to as 222868 and have a DIN 3771 size of 18 x 1. This item is equivalent to and has an FDA - EC1935/2004 - USP Class VI - BAM approval. The chemical name of this O-Ring is Fluorcarbonrubber / Fluorrubber / Fluorpolymeer-elastomeer.