*4025-514AD MINNESOTA RUBBER QUAD RING

VQ4025 is an AS568-025 black Viton® (FKM) 75 Shore A quad profile Quad-Ring built to an inside diameter of 0.176 in (4.47 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.316 in (33.43 mm). In service, this quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

The material holds up against many acids, aggressive chemicals, and chlorinated solvents. Viton® (FKM) delivers very low compression set at elevated temperature, excellent resistance to compression set and permeation. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C).

Maintenance and OEM teams specify it across semiconductor equipment, chemical processing, and aerospace.

VQ4025 ships individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.