-214 BLACK BUNA 70D O-RING

Part number H70MD214 is an AS568-214 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 0.984 in (24.99 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.262 in (32.05 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The compound resists greases and lubricants, propane and butane, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in ketones or ozone and direct sunlight.

The compound is metal detectable for HACCP and foreign-body control programs. You will find this material specified across fluid power, automotive, and general industrial maintenance.

H70MD214 ships individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.