8.4MM CS X 224.5MM ID BLACK BUNA 90D

Buna-N O-Ring, 8.4 x 224.5 mm, 90A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Durometer
90 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Unit of Measure
EA
SKU:
H90M8.4X224.5
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Product Specification

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H90M8.4X224.5 is a black Buna-N (Nitrile) 90 Shore A O-Ring with an inside diameter of 224.5 mm (8.839 in), a cross section of 8.4 mm (0.331 in), and an outside diameter of 241.3 mm (9.5 in). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. Additional detail on this item: Metric O-RING, JIS P225.

Expect good resistance to water, propane and butane, and hydraulic fluids. Buna-N (Nitrile) delivers low compression set under sustained load, reliable performance in both static and dynamic service. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).

It sees regular use in agricultural equipment, general industrial maintenance, and hydraulic and pneumatic systems.

Order part number H90M8.4X224.5, sold individually. Unit weight is approximately 55.2 g. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H90M8.4X224.5
Description
8.4MM CS X 224.5MM ID BLACK BUNA 90D
Actual Outside Diameter
241.3 mm (9.5 inch)
Actual Cross Section
8.4 mm (0.331 inch)
Actual Inside Diameter
224.5 mm (8.839 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity