-159 BLACK BUNA 90D O-RING

Part number H90159 is an AS568-159 black Buna-N (Nitrile) 90 Shore A O-Ring built to an inside diameter of 4.987 in (126.67 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 5.193 in (131.9 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, Buna-N (Nitrile) offers reliable performance in both static and dynamic service, low compression set under sustained load. Expect good resistance to many alcohols, greases and lubricants, and propane and butane. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or ozone and direct sunlight.

Typical settings include fluid power, automotive, and construction equipment.

H90159 ships individually. Unit weight is approximately 2.907 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.