2.4MM CS X 12.3MM ID BLACK BUNA 70D

Buna-N O-Ring, 2.4 x 12.3 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:
H2.4X12.3
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Product Specification

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Ordered as H2.4X12.3, this is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 12.3 mm (0.484 in), a cross section of 2.4 mm (0.094 in), and an outside diameter of 17.1 mm (0.67 in). The o-ring remains the most cost-effective sealing element available for pressurized assemblies. Supplementary detail from the product record: Metric O-RING, JIS P12.5.

It resists many alcohols, greases and lubricants, and petroleum-based oils. Buna-N (Nitrile) delivers the most widely specified general-purpose sealing elastomer and low compression set under sustained load. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ketones or polar solvents.

You will find this material specified across automotive, construction equipment, and general industrial maintenance.

This item is sold individually under part number H2.4X12.3. Unit weight is approximately 0.2528 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H2.4X12.3
Description
2.4MM CS X 12.3MM ID BLACK BUNA 70D
Actual Outside Diameter
17.1 mm (0.67 inch)
Actual Cross Section
2.4 mm (0.094 inch)
Actual Inside Diameter
12.3 mm (0.484 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity