*4039-366Y MINNESOTA RUBBER QUAD RING

APG stocks the HQ4039, an AS568-039 black Buna-N (Nitrile) 70 Shore A quad profile Quad-Ring built to an inside diameter of 2.739 in (69.57 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 2.879 in (73.13 mm). A quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

As a material, Buna-N (Nitrile) delivers the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. The compound resists water, propane and butane, and petroleum-based oils. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in automotive brake fluid or ketones.

Common environments for this compound include agricultural equipment, general industrial maintenance, and fluid power.

Reference part number HQ4039 when ordering; the item is sold individually. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.