-221 BLACK BUNA 70D O-RING

Part number H70221 is an AS568-221 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 1.421 in (36.09 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.699 in (43.15 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Expect good resistance to petroleum-based oils, greases and lubricants, and hydraulic fluids. Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs and low compression set under sustained load. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to strong acids or polar solvents will shorten service life.

Common environments for this compound include hydraulic and pneumatic systems, automotive, and construction equipment.

This item is sold individually under part number H70221. Unit weight is approximately 0.0015 g and nominal inside diameter is listed as 1 7/16 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.