The 75172500 is a high-quality FKM O-ring from Freudenberg-NOK, engineered for reliable sealing in various industrial applications. With a diameter of 4.237 inches and a thickness of 0.103 inches, this O-ring is designed to withstand high pressures and aggressive chemicals. It is rated for 75 durometer hardness, ensuring durability and long-lasting performance. This O-ring is ideal for use in hydraulic systems, automotive applications, and other environments where effective sealing is critical. Its superior material composition provides excellent resistance to oils, fuels, and solvents, making it a dependable choice for maintaining system integrity.