**4168-366Y MINNESOTA RUBBER QUAD RING

The HQ4168 is an AS568-168 black Buna-N (Nitrile) 70 Shore A Quad-Ring measuring an inside diameter of 7.237 in (183.82 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 7.443 in (189.05 mm). This quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

Buna-N (Nitrile) offers strong abrasion and tear resistance, reliable performance in both static and dynamic service. The compound resists many alcohols, greases and lubricants, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to ketones or polar solvents will shorten service life. The profile itself contributes resistance to the spiral twisting that defeats round-section rings and lower compressive load required to achieve a seal.

Common environments for this compound include fluid power, general industrial maintenance, and hydraulic and pneumatic systems.

Stocked as HQ4168 and sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.