*4230-366Y MINNESOTA RUBBER QUAD RING

This quad-ring is supplied in AS568-230 black Buna-N (Nitrile) 70 Shore A with an inside diameter of 2.484 in (63.09 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 2.762 in (70.15 mm), catalogued under part number HQ4230. It seats in a standard o-ring gland while offering improved dynamic performance.

This material stands up to greases and lubricants, petroleum-based oils, and propane and butane. Buna-N (Nitrile) delivers the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving ketones or strong acids call for a different compound. The profile itself contributes two sealing bands per contact face rather than one and resistance to the spiral twisting that defeats round-section rings.

Common environments for this compound include hydraulic and pneumatic systems, fluid power, and agricultural equipment.

This item is sold individually under part number HQ4230. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.