The 4 x 4.5 x 0.5625 inch NBR Loaded Symmetrical U-Cup from Freudenberg-NOK, model 25004000562B-2093, is specifically designed for high-performance sealing in hydraulic and pneumatic systems. Constructed from durable NBR material, this U-Cup offers excellent resistance to wear and various fluids, ensuring reliable operation in demanding environments. Its symmetrical design facilitates easy installation and effective sealing, making it suitable for a wide range of applications. This U-Cup meets industry standards, providing peace of mind for users seeking dependable sealing solutions.