The 4 MM CS X 39.5 MM ID NBR (BUNA) 70 O-Ring from Freudenberg-NOK is engineered for superior sealing performance in various applications. With a cross-section of 4 mm and an inner diameter of 39.5 mm, this O-ring is made from high-quality NBR (BUNA) material, rated for 70 durometer hardness. It is ideal for use in hydraulic and pneumatic systems, providing excellent resistance to oils, fuels, and other chemicals. This O-ring is designed to ensure a tight seal, preventing leaks and enhancing the efficiency of your equipment.
