-388 BLACK BUNA 70D O-RING

Part number H70388 is an AS568-388 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 18.953 in (481.41 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 19.373 in (492.07 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Expect good resistance to hydraulic fluids, greases and lubricants, and petroleum-based oils. Buna-N (Nitrile) is known for low compression set under sustained load, strong abrasion and tear resistance. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with polar solvents or ketones.

Typical settings include fluid power, hydraulic and pneumatic systems, and agricultural equipment.

Reference part number H70388 when ordering; the item is sold individually. Unit weight is approximately 41.58 g. Check the compound against your process media, pressure and temperature before committing to a design.