H90471 is an AS568-471 black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 21.955 in (557.66 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 22.505 in (571.63 mm). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
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 water, many alcohols, and hydraulic fluids. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.
You will find this material specified across automotive, fluid power, and construction equipment.
Stocked as H90471 and sold individually. Unit weight is approximately 91.995 g and nominal inside diameter is listed as 22 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description -471 BLACK BUNA 90D O-RING
uf_description2 0.275" (6.99MM) CS X 21.955" (557.66MM) ID
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 21.955 inch (557.66 mm)
Actual_OD 22.505 inch (571.63 mm)
ProductCode Description O-Rings - Bulk - Commodity