Q-207 BUNA 70 Q RING

APG stocks the QH70207, an AS568-207 black Buna-N (Nitrile) 70 Shore A quad profile Quad-Ring measuring an inside diameter of 0.546 in (13.87 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 0.824 in (20.93 mm). A quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs, strong abrasion and tear resistance. The compound resists greases and lubricants, propane and butane, and water. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving strong acids or ozone and direct sunlight call for a different compound.

Typical settings include construction equipment, general industrial maintenance, and agricultural equipment.

This item is sold individually under part number QH70207. Unit weight is approximately 0.6935 g and nominal inside diameter is listed as 9/16 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.