The SNI39 seal measures 4.500" in inner diameter, 5.250" in outer diameter, and 0.625" in thickness. This product from Freudenberg-NOK is designed for robust sealing in various applications. Its construction ensures compatibility with a range of fluids, making it suitable for hydraulic and pneumatic systems. The U907BB designation indicates its specific material properties, providing excellent resistance to wear and environmental factors. This seal is engineered to maintain system integrity and prevent leaks, ensuring reliable operation in demanding conditions.