7MM CS X 90MM ID BLACK BUNA 70D

The H7X90 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 90 mm (3.543 in), a cross section of 7 mm (0.276 in), and an outside diameter of 104 mm (4.09 in). This o-ring compresses into its gland to block fluid or gas migration across a joint.

The material holds up against hydraulic fluids, petroleum-based oils, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) delivers 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). Exposure to polar solvents or strong acids will shorten service life.

Typical settings include general industrial maintenance, construction equipment, and fluid power.

Order part number H7X90, sold individually. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.