The Freudenberg-NOK N903X O-ring, with a diameter of 0.734" and a cross-section of 0.139", is made from high-performance 90 NBR (Nitrile Butadiene Rubber). This O-ring is designed to withstand harsh conditions, providing excellent sealing capabilities in applications involving oils and fuels. With a durometer rating of 90, it ensures minimal compression set and maintains its sealing properties under pressure. The N903X is compliant with industry standards, making it suitable for a variety of uses in automotive, aerospace, and manufacturing industries. Its reliable performance and durability make it a critical component for effective sealing in hydraulic and pneumatic systems.