3MM CS X 3MM ID BLACK BUNA 70D

Buna-N O-Ring, 3 x 3 mm, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
28 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:
H3X3
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Product Specification

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The H3X3 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 3 mm (0.118 in), a cross section of 3 mm (0.118 in), and an outside diameter of 9 mm (0.35 in). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) delivers low compression set under sustained load, reliable performance in both static and dynamic service. Expect good resistance to many alcohols, water, and propane and butane. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving ketones or ozone and direct sunlight call for a different compound.

Common environments for this compound include agricultural equipment, automotive, and fluid power.

Reference part number H3X3 when ordering; the item is sold individually. Unit weight is approximately 0.163 g. Review your operating media and conditions against this specification before installation.
Item
H3X3
Description
3MM CS X 3MM ID BLACK BUNA 70D
Actual Outside Diameter
9 mm (0.35 inch)
Actual Cross Section
3 mm (0.118 inch)
Actual Inside Diameter
3 mm (0.118 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity