-168 BLACK BUNA 90D O-RING

Ordered as H90168, this is an AS568-168 black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 7.237 in (183.82 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 7.443 in (189.05 mm). The o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, strong abrasion and tear resistance. Expect good resistance to greases and lubricants, many alcohols, and propane and butane. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to ozone and direct sunlight or ketones will shorten service life.

It sees regular use in fluid power, automotive, and general industrial maintenance.

Reference part number H90168 when ordering; the item is sold individually. Unit weight is approximately 4.2675 g and nominal inside diameter is listed as 7 1/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.