4338-514AD MINNESOTA RUBBER QUAD RING

The VQ4338 is an AS568-338 black Viton® (FKM) 75 Shore A quad profile Quad-Ring measuring an inside diameter of 3.1 in (78.74 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.52 in (89.41 mm). This quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

The material holds up against aromatic hydrocarbons, petroleum oils and fuels, and many acids. That behavior comes from the compound itself: Viton® (FKM) is known for outstanding high-temperature capability and very low compression set at elevated temperature. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Verify compatibility before use with low-molecular-weight organic acids or amines.

Typical settings include semiconductor equipment, automotive fuel systems, and chemical processing.

Reference part number VQ4338 when ordering; the item is sold individually. Review your operating media and conditions against this specification before installation.