3.5MM CS X 37.7MM ID BLACK BUNA 90D

This o-ring is supplied in black Buna-N (Nitrile) 90 Shore A measuring an inside diameter of 37.7 mm (1.484 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 44.7 mm (1.76 in), catalogued under part number H90M3.5X37.7. It provides a reliable static or dynamic seal by deforming into its gland under assembly load. The catalog record notes: Metric O-RING, JIS P38.

Buna-N (Nitrile) is specified here for low compression set under sustained load and most widely specified general-purpose sealing elastomer. This material stands up to water, hydraulic fluids, and many alcohols. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with polar solvents or ozone and direct sunlight.

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, general industrial maintenance, and agricultural equipment.

H90M3.5X37.7 ships individually. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.