The 10X21X4 TC-T NBR Metric Oil Seal from Freudenberg-NOK is designed for effective sealing in various machinery applications. This oil seal features an outer diameter of 0.394 inches, an inner diameter of 0.827 inches, and a width of 0.157 inches, constructed from durable NBR (BUNA) material. It provides excellent resistance to oils and lubricants, ensuring long-lasting performance. The design minimizes leakage and enhances the efficiency of equipment, making it a vital component for maintaining operational integrity in industrial settings. This oil seal meets industry standards for quality and reliability.