*4253-514AD MINNESOTA RUBBER QUAD RING

Part number VQ4253 is an AS568-253 black Viton® (FKM) 75 Shore A quad profile Quad-Ring built to an inside diameter of 5.359 in (136.12 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.637 in (143.18 mm). A quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

Viton® (FKM) is specified here for very low compression set at elevated temperature, excellent resistance to compression set and permeation. Expect good resistance to aromatic hydrocarbons, chlorinated solvents, and many acids. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Exposure to hot water and steam or amines will shorten service life.

Maintenance and OEM teams specify it across oil and gas, chemical processing, and high-temperature process equipment.

Order part number VQ4253, sold individually. Nominal inside diameter is listed as 5 3/8 inch. 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.