4013-366Y MINNESOTA RUBBER QUAD RING

Part number HQ4013 is an AS568-013 black Buna-N (Nitrile) 70 Shore A quad profile Quad-Ring built to an inside diameter of 0.426 in (10.82 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.566 in (14.38 mm). A quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, low compression set under sustained load. It resists water, petroleum-based oils, and greases and lubricants. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in automotive brake fluid or ozone and direct sunlight.

Typical settings include general industrial maintenance, construction equipment, and hydraulic and pneumatic systems.

Reference part number HQ4013 when ordering; the item is sold individually. Nominal inside diameter is listed as 7/16 inch. Check the compound against your process media, pressure and temperature before committing to a design.