The Freudenberg-NOK OR 8.975" 0.275" 90 HNBR H901B seal is engineered for optimal sealing performance in demanding environments. Constructed from high-grade HNBR, this O-ring provides exceptional resistance to heat, oil, and various chemicals, making it suitable for a wide range of industrial applications. With an outer diameter of 8.975" and a cross-section of 0.275", it meets standard sizing requirements and adheres to industry compliance standards. Ideal for hydraulic and pneumatic systems, this seal ensures a reliable and durable seal under pressure, making it a preferred choice for professionals seeking quality and performance.