Q-239 FLUOROELASTOMER 75 Q RING

Ordered as QV70239, this is an AS568-239 black Viton® (FKM) 75 Shore A quad profile Quad-Ring with an inside diameter of 3.609 in (91.67 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.887 in (98.73 mm). The quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

Viton® (FKM) is specified here for very low compression set at elevated temperature and outstanding high-temperature capability. Expect good resistance to many acids, chlorinated solvents, and aromatic hydrocarbons. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service.

You will find this material specified across semiconductor equipment, automotive fuel systems, and aerospace.

Reference part number QV70239 when ordering; the item is sold individually. Unit weight is approximately 6.0375 g and nominal inside diameter is listed as 3 5/8 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.