The 4.25 x 5 x 0.5 NBR Loaded Symmetrical U-Cup from Freudenberg-NOK (SKU: 37504250500B-2093) is designed for reliable sealing in various industrial applications. Made from high-quality NBR (Nitrile Butadiene Rubber), this U-Cup offers excellent resistance to oils and fuels, making it ideal for hydraulic and pneumatic systems. With a symmetrical design, it ensures even pressure distribution and longevity. The dimensions of 4.25 inches in outer diameter, 5 inches in inner diameter, and a 0.5-inch width provide a perfect fit for standard applications. This product meets industry standards for performance and durability.