The Freudenberg-NOK N903X O-ring, with a diameter of 1.421" and a cross-section of 0.139", is constructed from 90 NBR (Nitrile Butadiene Rubber) for enhanced durability. This O-ring is specifically designed for applications requiring resistance to oils and fuels, making it ideal for various industrial environments. With a hardness rating of 90, it provides excellent sealing performance under pressure, ensuring reliability in both static and dynamic applications. The N903X meets stringent industry standards, ensuring compatibility with a wide range of systems in automotive, aerospace, and manufacturing sectors. Its robust design guarantees long-lasting performance, making it an essential sealing solution.