568-029 BUNA 70 SQUARE CUT RINGS

The SH70029 is an AS568-029 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring with an inside diameter of 1.489 in (37.82 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.629 in (41.38 mm). This quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

As a material, Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer and low compression set under sustained load. The material holds up against water, greases and lubricants, and petroleum-based oils. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with ozone and direct sunlight or polar solvents.

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

SH70029 ships individually. Unit weight is approximately 0.434 g and nominal inside diameter is listed as 1 1/2 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.