-407 BLACK BUNA 90D O-RING

Part number H90407 is an AS568-407 black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 2.225 in (56.52 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 2.775 in (70.49 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is known for strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. The compound resists greases and lubricants, hydraulic fluids, and petroleum-based oils. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where polar solvents or automotive brake fluid are present.

Typical settings include agricultural equipment, automotive, and general industrial maintenance.

H90407 ships individually. Unit weight is approximately 10.14 g and nominal inside diameter is listed as 2 1/4 inch. Review your operating media and conditions against this specification before installation.