2.4MM CS X 4.3MM ID BLACK BUNA 70D

Buna-N O-Ring, 2.4 x 4.3 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:
H2.4X4.3
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Product Specification

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H2.4X4.3 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 4.3 mm (0.169 in), a cross section of 2.4 mm (0.094 in), and an outside diameter of 9.1 mm (0.36 in). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

It resists petroleum-based oils, propane and butane, and greases and lubricants. Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).

Common environments for this compound include general industrial maintenance, fluid power, and agricultural equipment.

Stocked as H2.4X4.3 and sold individually. 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
H2.4X4.3
Description
2.4MM CS X 4.3MM ID BLACK BUNA 70D
Actual Outside Diameter
9.1 mm (0.36 inch)
Actual Cross Section
2.4 mm (0.094 inch)
Actual Inside Diameter
4.3 mm (0.169 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity