The Freudenberg-NOK Dichtomatik OR 5.350" 0.210" 90 NBR N901W O-ring is specifically designed for effective sealing in a variety of industrial applications. Constructed from high-performance Nitrile Butadiene Rubber (NBR), it provides excellent resistance to a range of chemicals, oils, and fuels. With an outer diameter of 5.350" and a cross-section of 0.210", this O-ring fits standard sealing requirements, ensuring a secure and reliable seal. Its compliance with industry standards guarantees durability and effectiveness in challenging environments.