568-105 BUNA 70 SQUARE CUT RINGS

Part number SH70105 is an AS568-105 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring measuring an inside diameter of 0.143 in (3.63 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 0.349 in (8.86 mm). A quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

It resists water, greases and lubricants, and hydraulic fluids. Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer and an economical choice for high-volume maintenance programs. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Applications involving polar solvents or ketones call for a different compound.

You will find this material specified across hydraulic and pneumatic systems, agricultural equipment, and construction equipment.

This item is sold individually under part number SH70105. Nominal inside diameter is listed as 5/32 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.