Owing to our profound experience in the industry, we have been able to offer Rubber NBR O-Ring Seals. The offered range of rubber nbr o-ring seals - British standard & metric sizes are known for its cost effective performance. These are mainly used as seals on pumps, drive belts, and other general engineering applications. These can withstand fats, greases and high temperature. Suitable for: Fats Hydrocarbons Oils gasoline Petroleum based hydraulic fluid Generally attacked by: Ozone Esters Retones Aldehyde's Chlorinated Nitro hydrocarbons