4343-514AD MINNESOTA RUBBER QUAD RING

The VQ4343 is an AS568-343 black Viton® (FKM) 75 Shore A quad profile Quad-Ring measuring an inside diameter of 3.725 in (94.62 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.145 in (105.28 mm). This quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

Viton® (FKM) is specified here for very low compression set at elevated temperature and outstanding high-temperature capability. The compound resists petroleum oils and fuels, many acids, and chlorinated solvents. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). Applications involving low-molecular-weight organic acids or hot water and steam call for a different compound.

It sees regular use in aerospace, semiconductor equipment, and chemical processing.

This item is sold individually under part number VQ4343. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.