-469 BLACK BUNA 90D O-RING

H90469 is an AS568-469 black Buna-N (Nitrile) 90 Shore A O-Ring built to an inside diameter of 19.955 in (506.86 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 20.505 in (520.83 mm). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The compound resists many alcohols, petroleum-based oils, and greases and lubricants. Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, low compression set under sustained load. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where ketones or polar solvents are present.

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

This item is sold individually under part number H90469. Unit weight is approximately 80.86 g and nominal inside diameter is listed as 20 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. 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.