*4135-514AD MINNESOTA RUBBER QUAD RING

This quad-ring is supplied in AS568-135 black Viton® (FKM) 75 Shore A quad profile supplied with an inside diameter of 1.925 in (48.9 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.131 in (54.13 mm), catalogued under part number VQ4135. It resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

Expect good resistance to aromatic hydrocarbons, aggressive chemicals, and chlorinated solvents. That behavior comes from the compound itself: Viton® (FKM) delivers long service life in hot, chemically aggressive environments and outstanding high-temperature capability. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). It should not be specified for service in low-molecular-weight organic acids or ketones and esters.

Typical settings include automotive fuel systems, chemical processing, and oil and gas.

Stocked as VQ4135 and sold individually. Nominal inside diameter is listed as 1.9375 inch. 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.