*4141-366Y MINNESOTA RUBBER QUAD RING

APG stocks the HQ4141, an AS568-141 black Buna-N (Nitrile) 70 Shore A Quad-Ring supplied with an inside diameter of 2.3 in (58.42 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.506 in (63.65 mm). A quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

As a material, Buna-N (Nitrile) delivers low compression set under sustained load and an economical choice for high-volume maintenance programs. The compound resists greases and lubricants, hydraulic fluids, and water. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ketones or ozone and direct sunlight are present. The profile itself contributes resistance to the spiral twisting that defeats round-section rings and a parting line located away from the sealing surface.

You will find this material specified across hydraulic and pneumatic systems, general industrial maintenance, and construction equipment.

Order part number HQ4141, sold individually. Nominal inside diameter is listed as 2 5/16 inch. 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.