Q-164 BUNA 70 Q RING

Part number QH70164 is an AS568-164 black Buna-N (Nitrile) 70 Shore A quad profile Quad-Ring built to an inside diameter of 6.237 in (158.42 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 6.443 in (163.65 mm). A quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

As a material, Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs and low compression set under sustained load. The material holds up against many alcohols, hydraulic fluids, and water. 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 ozone and direct sunlight.

Typical settings include automotive, hydraulic and pneumatic systems, and agricultural equipment.

Reference part number QH70164 when ordering; the item is sold individually. Unit weight is approximately 3.2736 g and nominal inside diameter is listed as 6 1/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.