*4135-366Y MINNESOTA RUBBER QUAD RING

Part number HQ4135 is an AS568-135 black Buna-N (Nitrile) 70 Shore A Quad-Ring measuring an inside diameter of 1.925 in (48.9 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.131 in (54.13 mm). A quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

It resists greases and lubricants, petroleum-based oils, and hydraulic fluids. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for 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 ketones are present. The profile itself contributes lower compressive load required to achieve a seal and a parting line located away from the sealing surface.

Typical settings include agricultural equipment, construction equipment, and general industrial maintenance.

Order part number HQ4135, sold individually. Nominal inside diameter is listed as 1 15/16 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.