3.1MM CS X 24.4MM ID BLACK BUNA 70D

Buna-N O-Ring, 3.1 x 24.4 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:
H3.1X24.4
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Product Specification

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This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 24.4 mm (0.961 in), a cross section of 3.1 mm (0.122 in), and an outside diameter of 30.6 mm (1.2 in), catalogued under part number H3.1X24.4. It compresses into its gland to block fluid or gas migration across a joint. This item is further identified as Metric O-RING, JIS G25.

Expect good resistance to hydraulic fluids, many alcohols, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer and low compression set under sustained load. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to ozone and direct sunlight or polar solvents will shorten service life.

Typical settings include hydraulic and pneumatic systems, automotive, and agricultural equipment.

Order part number H3.1X24.4, sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Item
H3.1X24.4
Description
3.1MM CS X 24.4MM ID BLACK BUNA 70D
Actual Outside Diameter
30.6 mm (1.2 inch)
Actual Cross Section
3.1 mm (0.122 inch)
Actual Inside Diameter
24.4 mm (0.961 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity