**4159-366Y MINNESOTA RUBBER QUAD RING

HQ4159 is an AS568-159 black Buna-N (Nitrile) 70 Shore A Quad-Ring built to an inside diameter of 4.987 in (126.67 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 5.193 in (131.9 mm). In service, this quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. It resists propane and butane, water, and hydraulic fluids. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). The profile itself contributes lower compressive load required to achieve a seal and resistance to the spiral twisting that defeats round-section rings.

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

This item is sold individually under part number HQ4159. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.