Ring 39.69*3.53 FKM-O-ring made of fluoro rubber (FKM, Viton).
The temperature range for Viton O-rings is from -20°C to 205 °C. They can withstand higher temperatures, but with a shorter period of use.
FKM, Viton rubber is highly compatible with: mineral and vegetable oils and oils, diesel fuel and gasoline, acids, aromatic hydrocarbons (benzene, toluene), chlorinated hydrocarbons (trichloroethylene), resistant to ozone.
Incompatibility with the following substances: glycol-based brake fluids, ammonia gas, Amines, acetones, ethyl acetates, alkalis, ketones, low molecular weight organic acids (formic and acetic acids). superheated steam.
