-270 BLACK BUNA 90D O-RING

Ordered as H90270, this is an AS568-270 black Buna-N (Nitrile) 90 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.

Expect good resistance to greases and lubricants, water, and petroleum-based oils. Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in strong acids or ketones.

You will find this material specified across agricultural equipment, general industrial maintenance, and hydraulic and pneumatic systems.

This item is sold individually under part number H90270. Unit weight is approximately 9.6282 g and nominal inside diameter is listed as 9 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.