4354-514AD MINNESOTA RUBBER QUAD RING

Ordered as VQ4354, this is an AS568-354 black Viton® (FKM) 75 Shore A quad profile Quad-Ring supplied with an inside diameter of 5.1 in (129.54 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.52 in (140.21 mm). The quad-ring provides a dual sealing band on each contact face for improved reliability.

It resists aromatic hydrocarbons, petroleum oils and fuels, and many acids. Viton® (FKM) is known for excellent resistance to compression set and permeation, very low compression set at elevated temperature. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. Verify compatibility before use with amines or low-molecular-weight organic acids.

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

Reference part number VQ4354 when ordering; the item is sold individually. Nominal inside diameter is listed as 5 1/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.