1MM CS X 8.3MM ID BLACK BUNA 70D

Buna-N O-Ring, 1 x 8.3 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:
H1X8.3
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Product Specification

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This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A with an inside diameter of 8.3 mm (0.327 in), a cross section of 1 mm (0.039 in), and an outside diameter of 10.3 mm (0.41 in), catalogued under part number H1X8.3. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, Buna-N (Nitrile) is specified for strong abrasion and tear resistance, low compression set under sustained load. The material holds up against hydraulic fluids, propane and butane, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ozone and direct sunlight or ketones.

Common environments for this compound include hydraulic and pneumatic systems, general industrial maintenance, and agricultural equipment.

Order part number H1X8.3, sold individually. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
H1X8.3
Description
1MM CS X 8.3MM ID BLACK BUNA 70D
Actual Outside Diameter
10.3 mm (0.41 inch)
Actual Cross Section
1 mm (0.039 inch)
Actual Inside Diameter
8.3 mm (0.327 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity