-155 BLACK BUNA 90D O-RING

This o-ring is supplied in AS568-155 black Buna-N (Nitrile) 90 Shore A supplied with an inside diameter of 3.987 in (101.27 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 4.193 in (106.5 mm), catalogued under part number H90155. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.

It resists propane and butane, water, and hydraulic fluids. Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with strong acids or ketones.

You will find this material specified across construction equipment, fluid power, and hydraulic and pneumatic systems.

Reference part number H90155 when ordering; the item is sold individually. Unit weight is approximately 2.5303 g. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.