The NBR 12019230B is a high-quality rotary shaft oil seal designed for effective sealing in various machinery applications. It features an inner diameter of 49 mm, a primary outer diameter of 65 mm, and an overall outer diameter of 68 mm, indicating a double-lip design with an integrated dust lip. The primary sealing lip height is 10 mm, with an overall height of 13.8 mm. Constructed from Nitrile Butadiene Rubber (NBR), this seal offers excellent resistance to oils, fuels, and hydraulic fluids, ensuring reliable performance and protection against contaminants.