The Freudenberg-NOK H901B O-ring, measuring 25.940 inches in diameter and 0.275 inches in thickness, is made from durable 90 durometer HNBR material. This O-ring is engineered for high-performance sealing in various industrial applications, providing excellent resistance to heat, oil, and chemicals. Its design ensures a reliable seal under pressure, making it ideal for hydraulic and pneumatic systems. The H901B meets industry standards for quality and reliability, making it a trusted choice for engineers and maintenance professionals seeking long-lasting sealing solutions.