You have no items in your shopping cart.

1.8MM CS X 1.8MM ID BLACK BUNA 70D

Buna-N O-Ring, 1.8 x 1.8 mm, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
24 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:
H1.8X1.8
Please login to see price and add to cart

Product Specification

-
APG stocks the H1.8X1.8, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 1.8 mm (0.071 in), a cross section of 1.8 mm (0.071 in), and an outside diameter of 5.4 mm (0.21 in). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs and most widely specified general-purpose sealing elastomer. The compound resists petroleum-based oils, many alcohols, and hydraulic fluids. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.

Maintenance and OEM teams specify it across general industrial maintenance, automotive, and hydraulic and pneumatic systems.

This item is sold individually under part number H1.8X1.8. Unit weight is approximately 0.034 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
Item
H1.8X1.8
Description
1.8MM CS X 1.8MM ID BLACK BUNA 70D
Actual Outside Diameter
5.4 mm (0.21 inch)
Actual Cross Section
1.8 mm (0.071 inch)
Actual Inside Diameter
1.8 mm (0.071 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity