The O-Ring 0.313 x 0.125 from Freudenberg-NOK, model 9251, is a reliable sealing solution for various applications. With a diameter of 0.313 inches and a thickness of 0.125 inches, this O-Ring is ideal for use in hydraulic and pneumatic systems. Constructed from durable materials, it ensures longevity and resistance to wear. This O-Ring complies with industry standards, providing reliable performance and compatibility in challenging conditions. Its effective sealing capabilities under pressure make it a trusted choice for professionals.