568-206 BUNA 70 SQUARE CUT RINGS

SH70206 is an AS568-206 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring with an inside diameter of 0.484 in (12.29 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 0.762 in (19.35 mm). In service, this quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

The compound resists water, propane and butane, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) is specified for low compression set under sustained load, reliable performance in both static and dynamic service. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to strong acids or ketones will shorten service life.

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, fluid power, and general industrial maintenance.

Stocked as SH70206 and sold individually. Unit weight is approximately 0.7108 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.