3MM CS X 68MM ID BLACK BUNA 70D

Buna-N O-Ring, 3 x 68 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:
H3X68
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Product Specification

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Ordered as H3X68, this is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 68 mm (2.677 in), a cross section of 3 mm (0.118 in), and an outside diameter of 74 mm (2.91 in). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. Expect good resistance to propane and butane, many alcohols, and water. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

It sees regular use in agricultural equipment, fluid power, and general industrial maintenance.

This item is sold individually under part number H3X68. Unit weight is approximately 1.956 g. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Item
H3X68
Description
3MM CS X 68MM ID BLACK BUNA 70D
Actual Outside Diameter
74 mm (2.91 inch)
Actual Cross Section
3 mm (0.118 inch)
Actual Inside Diameter
68 mm (2.677 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity