4250-514AD MINNESOTA RUBBER QUAD RING

VQ4250 is an AS568-250 black Viton® (FKM) 75 Shore A quad profile Quad-Ring supplied with an inside diameter of 4.984 in (126.59 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.262 in (133.65 mm). In service, this quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

Viton® (FKM) is specified here for outstanding high-temperature capability and long service life in hot, chemically aggressive environments. Expect good resistance to aromatic hydrocarbons, aggressive chemicals, and chlorinated solvents. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). It should not be specified for service in ketones and esters or low-molecular-weight organic acids.

Maintenance and OEM teams specify it across automotive fuel systems, aerospace, and semiconductor equipment.

VQ4250 ships individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.