5.3MM CS X 67MM ID BLACK BUNA 70D

Buna-N O-Ring, 5.3 x 67 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:
H5.3X67
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Product Specification

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APG stocks the H5.3X67, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 67 mm (2.638 in), a cross section of 5.3 mm (0.209 in), and an outside diameter of 77.6 mm (3.06 in). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

As a material, Buna-N (Nitrile) is valued for strong abrasion and tear resistance, low compression set under sustained load. Expect good resistance to hydraulic fluids, petroleum-based oils, and propane and butane. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ozone and direct sunlight or polar solvents.

Maintenance and OEM teams specify it across construction equipment, agricultural equipment, and fluid power.

Stocked as H5.3X67 and sold individually. Unit weight is approximately 6.1686 g. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H5.3X67
Description
5.3MM CS X 67MM ID BLACK BUNA 70D
Actual Outside Diameter
77.6 mm (3.06 inch)
Actual Cross Section
5.3 mm (0.209 inch)
Actual Inside Diameter
67 mm (2.638 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity