The 275 MM ID X 4 MM CS 80 Durometer Urethane O-Ring from Freudenberg-NOK is designed for reliable sealing in various industrial applications. Constructed from high-quality urethane, this O-ring offers excellent resistance to oils and chemicals. With an inner diameter of 275 mm and a cross-section of 4 mm, it provides a precise fit for effective sealing. Rated at 80 durometer hardness, this O-ring is suitable for hydraulic and pneumatic systems, ensuring minimal leakage and enhanced performance. Its compliance with industry standards guarantees reliability and quality.