*4043-366Y MINNESOTA RUBBER QUAD RING

Ordered as HQ4043, this is an AS568-043 black Buna-N (Nitrile) 70 Shore A quad profile Quad-Ring supplied with an inside diameter of 3.489 in (88.62 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 3.629 in (92.18 mm). The quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

As a material, Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs and low compression set under sustained load. The material holds up against many alcohols, petroleum-based oils, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with strong acids or ozone and direct sunlight.

You will find this material specified across automotive, construction equipment, and general industrial maintenance.

Stocked as HQ4043 and sold individually. Nominal inside diameter is listed as 3 1/2. Check the compound against your process media, pressure and temperature before committing to a design.