The 0.275" OR 3.850" 75 NBR N750FM O-Ring by Freudenberg-NOK is a high-quality sealing solution designed for various applications. Made from NBR (Nitrile Butadiene Rubber), this O-ring offers excellent resistance to oils, fuels, and chemicals, ensuring a reliable seal in dynamic environments. Its precise dimensions make it suitable for standard fittings, providing a secure and leak-proof connection. Ideal for use in hydraulic systems, automotive applications, and industrial machinery, this O-ring meets industry standards for performance and durability.