568-043 BUNA 70 SQUARE CUT RINGS

SH70043 is an AS568-043 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring measuring 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). In service, this quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

Buna-N (Nitrile) is valued for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. The compound resists greases and lubricants, many alcohols, and hydraulic fluids. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving ozone and direct sunlight or strong acids call for a different compound.

Typical settings include fluid power, hydraulic and pneumatic systems, and agricultural equipment.

This item is sold individually under part number SH70043. Unit weight is approximately 0.873 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.