2.4MM CS X 18.3MM ID BLACK BUNA 70D

Buna-N O-Ring, 2.4 x 18.3 mm, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
1 Nov 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:
H2.4X18.3
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Product Specification

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Part number H2.4X18.3 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 18.3 mm (0.72 in), a cross section of 2.4 mm (0.094 in), and an outside diameter of 23.1 mm (0.91 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

As a material, Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs and low compression set under sustained load. Expect good resistance to greases and lubricants, hydraulic fluids, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or strong acids are present.

Maintenance and OEM teams specify it across construction equipment, fluid power, and hydraulic and pneumatic systems.

H2.4X18.3 ships individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H2.4X18.3
Description
2.4MM CS X 18.3MM ID BLACK BUNA 70D
Actual Outside Diameter
23.1 mm (0.91 inch)
Actual Cross Section
2.4 mm (0.094 inch)
Actual Inside Diameter
18.3 mm (0.72 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity