3.5MM CS X 31.2MM ID BLACK BUNA 90D

This o-ring is supplied in black Buna-N (Nitrile) 90 Shore A built to an inside diameter of 31.2 mm (1.228 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 38.2 mm (1.5 in), catalogued under part number H90M3.5X31.2. It remains the most cost-effective sealing element available for pressurized assemblies. Source specification: Metric O-RING, JIS P31.5.

As a material, Buna-N (Nitrile) is known for low compression set under sustained load and the most widely specified general-purpose sealing elastomer. Expect good resistance to petroleum-based oils, water, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving polar solvents or ozone and direct sunlight call for a different compound.

It sees regular use in automotive, agricultural equipment, and hydraulic and pneumatic systems.

This item is sold individually under part number H90M3.5X31.2. Review your operating media and conditions against this specification before installation.