4222-366Y MINNESOTA RUBBER QUAD RING

This quad-ring is supplied in AS568-222 black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 1.484 in (37.69 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.762 in (44.75 mm), catalogued under part number HQ4222. It resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

This material stands up to greases and lubricants, propane and butane, and water. Buna-N (Nitrile) offers strong abrasion and tear resistance, low compression set under sustained load. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving ozone and direct sunlight or automotive brake fluid call for a different compound. The profile itself contributes resistance to the spiral twisting that defeats round-section rings and two sealing bands per contact face rather than one.

Common environments for this compound include agricultural equipment, construction equipment, and automotive.

This item is sold individually under part number HQ4222. Nominal inside diameter is listed as 1 1/2 inch. Check the compound against your process media, pressure and temperature before committing to a design.