6MM CS X 31MM ID BLACK BUNA 70D

Buna-N O-Ring, 6 x 31 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:
H6X31
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Product Specification

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APG stocks the H6X31, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 31 mm (1.22 in), a cross section of 6 mm (0.236 in), and an outside diameter of 43 mm (1.69 in). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. Expect good resistance to greases and lubricants, many alcohols, 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 ketones or automotive brake fluid.

Typical settings include construction equipment, agricultural equipment, and general industrial maintenance.

H6X31 ships individually. Unit weight is approximately 4.014 g. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H6X31
Description
6MM CS X 31MM ID BLACK BUNA 70D
Actual Outside Diameter
43 mm (1.69 inch)
Actual Cross Section
6 mm (0.236 inch)
Actual Inside Diameter
31 mm (1.22 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity