568-025 BUNA 70 SQUARE CUT RINGS

The SH70025 is an AS568-025 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring supplied with an inside diameter of 1.176 in (29.87 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.316 in (33.43 mm). This quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

Buna-N (Nitrile) is widely chosen for low compression set under sustained load, reliable performance in both static and dynamic service. The material holds up against many alcohols, water, and hydraulic fluids. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or ketones.

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

SH70025 ships individually. Unit weight is approximately 0.4048 g and nominal inside diameter is listed as 1 3/16 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.