This NBR (BUNA) O-ring features a cross-section of 3.53 MM and an inner diameter of 445 MM, making it ideal for sealing applications in various industrial settings. The NBR material provides excellent resistance to oils, fuels, and chemicals, ensuring durability and reliability. Its precise dimensions are designed for a snug fit, preventing leaks and enhancing equipment performance. Freudenberg-NOK's commitment to quality ensures that this O-ring meets industry standards, making it a trusted solution for your sealing needs.