The Freudenberg-NOK HDP330 Fluid Power Seal measures 5.24 x 6 x 0.375 inches and is constructed from durable NBR (Nitrile Butadiene Rubber). This seal is engineered for use in hydraulic and pneumatic systems, providing reliable sealing performance under pressure. The NBR material is known for its excellent resistance to oils and fluids, ensuring long-lasting durability in challenging environments. This seal meets industry standards for quality, making it suitable for a wide range of applications in fluid power systems.