The 265 MM ID X 4 MM CS 80 Durometer Urethane O-Ring from Freudenberg-NOK is engineered for high-performance sealing in various applications. Made from durable urethane, this O-ring provides excellent resistance to oils and chemicals. With an inner diameter of 265 mm and a cross-section of 4 mm, it ensures a secure fit for effective sealing. Rated at 80 durometer hardness, this O-ring is ideal for hydraulic and pneumatic systems, offering reliable performance under pressure. Its robust construction meets industry standards, making it a trusted choice for engineers and maintenance professionals.