*4346-366Y MINNESOTA RUBBER QUAD RING

Part number HQ4346 is an AS568-346 black Buna-N (Nitrile) 70 Shore A Quad-Ring built to an inside diameter of 4.1 in (104.14 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.52 in (114.81 mm). A quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

It resists petroleum-based oils, many alcohols, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer and an economical choice for high-volume maintenance programs. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Verify compatibility before use with strong acids or automotive brake fluid. The profile itself contributes lower compressive load required to achieve a seal and resistance to the spiral twisting that defeats round-section rings.

Common environments for this compound include agricultural equipment, construction equipment, and general industrial maintenance.

Stocked as HQ4346 and sold individually. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.