-471 BLACK BUNA 90D O-RING

Buna-N O-Ring, 21.955 in ID x 0.275 CS, 90A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
471
Durometer
90 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Nominal Cross Section
1/4 inch
Nominal Inside Diameter
22 inch
Nominal Outside Diameter
22 1/2 inch
Unit of Measure
EA
SKU:
H90471
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Product Specification

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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.
Item
H90471
Description
-471 BLACK BUNA 90D O-RING
Actual Cross Section
0.275 inch (6.99 mm)
Actual Inside Diameter
21.955 inch (557.66 mm)
Actual Outside Diameter
22.505 inch (571.63 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity