-381 BLACK BUNA 90D O-RING

Part number H90381 is an AS568-381 black Buna-N (Nitrile) 90 Shore A O-Ring with an inside diameter of 11.975 in (304.17 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 12.395 in (314.83 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer and an economical choice for high-volume maintenance programs. The compound resists greases and lubricants, water, and hydraulic fluids. 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 ozone and direct sunlight or automotive brake fluid.

You will find this material specified across fluid power, general industrial maintenance, and agricultural equipment.

Stocked as H90381 and sold individually. Unit weight is approximately 30.171 g and nominal inside diameter is listed as 12 inch. Review your operating media and conditions against this specification before installation.