3MM CS X 64.5MM ID BLACK BUNA 70D

Buna-N O-Ring, 3 x 64.5 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:
H3X64.5
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Product Specification

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APG stocks the H3X64.5, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 64.5 mm (2.539 in), a cross section of 3 mm (0.118 in), and an outside diameter of 70.5 mm (2.78 in). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

As a material, Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. The compound resists many alcohols, hydraulic fluids, and greases and lubricants. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

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

This item is sold individually under part number H3X64.5. Review your operating media and conditions against this specification before installation.
Item
H3X64.5
Description
3MM CS X 64.5MM ID BLACK BUNA 70D
Actual Outside Diameter
70.5 mm (2.78 inch)
Actual Cross Section
3 mm (0.118 inch)
Actual Inside Diameter
64.5 mm (2.539 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity