-272 BLACK BUNA 70D O-RING

Ordered as H70272, this is an AS568-272 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 9.484 in (240.89 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 9.762 in (247.95 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.

The compound resists many alcohols, petroleum-based oils, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ketones or automotive brake fluid.

It sees regular use in hydraulic and pneumatic systems, agricultural equipment, and construction equipment.

H70272 ships individually. Unit weight is approximately 9.22 g and nominal inside diameter is listed as 9 1/2 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.