The Freudenberg-NOK H901B O-ring features a diameter of 0.414 inches and a thickness of 0.072 inches, made from high-quality 90 durometer HNBR material. This O-ring is designed for superior sealing performance in various industrial applications, ensuring durability and resistance to harsh environments. It meets industry standards for reliability and is compatible with a range of systems. Ideal for use in hydraulic and pneumatic applications, this O-ring provides excellent resistance to heat, oil, and chemicals, making it a versatile choice for engineers and maintenance professionals.