Q-445 FLUOROELASTOMER 75 Q RING

QV70445 is an AS568-445 black Viton® (FKM) 75 Shore A Quad-Ring with an inside diameter of 7.975 in (202.57 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 8.525 in (216.54 mm). In service, this quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

The material holds up against engine and transmission fluids, aggressive chemicals, and aromatic hydrocarbons. That behavior comes from the compound itself: Viton® (FKM) offers excellent resistance to compression set and permeation, very low compression set at elevated temperature. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). Exposure to ketones and esters or low-molecular-weight organic acids will shorten service life. The profile itself contributes a parting line located away from the sealing surface and two sealing bands per contact face rather than one.

Maintenance and OEM teams specify it across high-temperature process equipment, aerospace, and semiconductor equipment.

QV70445 ships individually. Unit weight is approximately 49.393 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.