-270 BLACK BUNA 70D O-RING

Ordered as H70270, this is an AS568-270 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 8.984 in (228.19 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 9.262 in (235.25 mm). The o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. It resists petroleum-based oils, propane and butane, and hydraulic fluids. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to polar solvents or ozone and direct sunlight will shorten service life.

Typical settings include construction equipment, hydraulic and pneumatic systems, and automotive.

Order part number H70270, sold individually. Unit weight is approximately 8.701 g and nominal inside diameter is listed as 9 inch. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.