1.8MM CS X 5MM ID BLACK BUNA 70D

Buna-N O-Ring, 1.8 x 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:
H1.8X5
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Product Specification

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APG stocks the H1.8X5, a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 5 mm (0.197 in), a cross section of 1.8 mm (0.071 in), and an outside diameter of 8.6 mm (0.34 in). An o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, Buna-N (Nitrile) offers low compression set under sustained load and an economical choice for high-volume maintenance programs. The material holds up against hydraulic fluids, petroleum-based oils, and greases and lubricants. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving ketones or ozone and direct sunlight call for a different compound.

You will find this material specified across automotive, agricultural equipment, and general industrial maintenance.

This item is sold individually under part number H1.8X5. Unit weight is approximately 0.0678 g. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H1.8X5
Description
1.8MM CS X 5MM ID BLACK BUNA 70D
Actual Outside Diameter
8.6 mm (0.34 inch)
Actual Cross Section
1.8 mm (0.071 inch)
Actual Inside Diameter
5 mm (0.197 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity