**4274-366Y MINNESOTA RUBBER QUAD RING

HQ4274 is an AS568-274 black Buna-N (Nitrile) 70 Shore A Quad-Ring supplied with an inside diameter of 9.984 in (253.59 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 10.262 in (260.65 mm). In service, this quad-ring provides a dual sealing band on each contact face for improved reliability.

This material stands up to propane and butane, water, and hydraulic fluids. Buna-N (Nitrile) is specified for low compression set under sustained load, reliable performance in both static and dynamic service. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving strong acids or ozone and direct sunlight call for a different compound. The profile itself contributes resistance to the spiral twisting that defeats round-section rings and lower compressive load required to achieve a seal.

You will find this material specified across construction equipment, automotive, and general industrial maintenance.

Order part number HQ4274, sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.