Ring 36.3*3.53 FKM-o-ring made of fluoro rubber (FKM, Viton) sealing. It is recommended to use at temperatures from -20°C to 205°C. FFKM / FKM Viton ® O-rings are highly resistant to: mineral and vegetable oils and oils, hydraulic fluids, organic solvents and chemicals, diesel fuel and gasoline, acids, aromatic and chlorinated hydrocarbons.