The 4.00 MM CS X 56 MM ID F37522 O-RING FKM F37522 from Freudenberg-NOK is a specialized sealing solution designed for precision applications. With a cross-section of 4.00 mm and an inner diameter of 56 mm, this O-ring is crafted from FKM material, ensuring excellent resistance to heat and chemicals. It is ideal for use in various industrial settings, providing a reliable seal that prevents leaks and maintains system integrity. The F37522 designation indicates its compatibility with specific systems, making it a preferred choice for engineers and technicians seeking high-quality sealing components.