-140 BLACK BUNA 90D O-RING

This o-ring is supplied in AS568-140 black Buna-N (Nitrile) 90 Shore A supplied with an inside diameter of 2.237 in (56.82 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.443 in (62.05 mm), catalogued under part number H90140. It compresses into its gland to block fluid or gas migration across a joint.

It resists hydraulic fluids, propane and butane, and greases and lubricants. Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, the most widely specified general-purpose sealing elastomer. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with ozone and direct sunlight or automotive brake fluid.

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

Reference part number H90140 when ordering; the item is sold individually. Unit weight is approximately 1.4194 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. 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.