568-331 BUNA 70 SQUARE CUT RINGS

This quad-ring is supplied in AS568-331 black Buna-N (Nitrile) 70 Shore A square profile supplied with an inside diameter of 2.225 in (56.52 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 2.645 in (67.18 mm), catalogued under part number SH70331. It uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

As a material, Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. It resists propane and butane, hydraulic fluids, and greases and lubricants. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in automotive brake fluid or ozone and direct sunlight.

Typical settings include agricultural equipment, automotive, and construction equipment.

This item is sold individually under part number SH70331. Unit weight is approximately 6.2568 g and nominal inside diameter is listed as 2 1/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.