4448-514AD MINNESOTA RUBBER QUAD RING

This quad-ring is supplied in AS568-448 black Viton® (FKM) 75 Shore A quad profile with an inside diameter of 9.475 in (240.67 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 10.025 in (254.64 mm), catalogued under part number VQ4448. It provides a dual sealing band on each contact face for improved reliability.

It resists chlorinated solvents, engine and transmission fluids, and petroleum oils and fuels. That behavior comes from the compound itself: Viton® (FKM) is valued for very low compression set at elevated temperature and the industry benchmark where nitrile reaches its thermal limit. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where ketones and esters or amines are present.

You will find this material specified across chemical processing, semiconductor equipment, and aerospace.

Reference part number VQ4448 when ordering; the item is sold individually. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.