4.5MM CS X 22MM ID BLACK BUNA 70D

Buna-N O-Ring, 4.5 x 22 mm, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Durometer
70 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:
H4.5X22
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Product Specification

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Ordered as H4.5X22, this is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 22 mm (0.866 in), a cross section of 4.5 mm (0.177 in), and an outside diameter of 31 mm (1.22 in). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, Buna-N (Nitrile) offers reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. The compound resists hydraulic fluids, many alcohols, and greases and lubricants. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with polar solvents or strong acids.

It sees regular use in automotive, hydraulic and pneumatic systems, and construction equipment.

H4.5X22 ships individually. Unit weight is approximately 1.8732 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
Item
H4.5X22
Description
4.5MM CS X 22MM ID BLACK BUNA 70D
Actual Outside Diameter
31 mm (1.22 inch)
Actual Cross Section
4.5 mm (0.177 inch)
Actual Inside Diameter
22 mm (0.866 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity