The Freudenberg-NOK OR 0.489" 90 HNBR H901B seal is engineered for optimal sealing performance in demanding environments. Constructed from high-grade HNBR, this O-ring features a 0.070" cross-section and a hardness rating of 90 durometer, ensuring a tight seal under various pressures. With an outer diameter of 0.489", it is perfect for applications in hydraulic and pneumatic systems. This seal meets industry standards, providing reliability and durability in critical applications. Its robust design ensures a long service life, making it an essential component for maintenance and engineering professionals.