4329-366Y MINNESOTA RUBBER QUAD RING

Part number HQ4329 is an AS568-329 black Buna-N (Nitrile) 70 Shore A Quad-Ring with an inside diameter of 1.975 in (50.17 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 2.395 in (60.83 mm). A quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

It resists water, propane and butane, and petroleum-based oils. Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong acids or polar solvents are present. The profile itself contributes two sealing bands per contact face rather than one and resistance to the spiral twisting that defeats round-section rings.

It sees regular use in automotive, general industrial maintenance, and agricultural equipment.

This item is sold individually under part number HQ4329. Nominal inside diameter is listed as 2 inch. Review your operating media and conditions against this specification before installation.