2.5MM CS X 89MM ID BLACK BUNA 70D

APG stocks the H2.5X89, a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 89 mm (3.504 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 94 mm (3.7 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

It resists many alcohols, water, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) offers strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to ozone and direct sunlight or automotive brake fluid will shorten service life.

You will find this material specified across fluid power, construction equipment, and agricultural equipment.

Reference part number H2.5X89 when ordering; the item is sold individually. Check the compound against your process media, pressure and temperature before committing to a design.