This FFKM - FFPM O-Ring has a diameter of 291.4x3.53 mm and is White in color. The hardness of this O-ring 291,4x3,53 - FFKM - FFPM - F808W95 - FDA - EC1935/2004 - USP Class VI - 3A Sanitary - High Temp (>300°C) - 80 Shore A - White - ORS183904 is 80 Shore A. Alternative names for the compound are FFKM – FFPM, and it is commonly produced by . The O-Ring is typically used in and has an operating temperature range from -15 ºC to 300 ºC. O-Rings 677254 are referred to as 183904 and have a DIN 3771 size of 291.4x3.53. This item is equivalent to and has an FDA - EC1935/2004 - USP Class VI - 3A Sanitary - High Temp (>300°C) approval. The chemical name of this O-Ring is Perfluoroelastomer.