1.9MM CS X 8MM ID BLACK BUNA 70D

Buna-N O-Ring, 1.9 x 8 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:
H1.9X8
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Product Specification

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APG stocks the H1.9X8, a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 8 mm (0.315 in), a cross section of 1.9 mm (0.075 in), and an outside diameter of 11.8 mm (0.46 in). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

The material holds up against hydraulic fluids, water, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer and an economical choice for high-volume maintenance programs. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or strong acids are present.

You will find this material specified across general industrial maintenance, hydraulic and pneumatic systems, and fluid power.

Reference part number H1.9X8 when ordering; the item is sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Item
H1.9X8
Description
1.9MM CS X 8MM ID BLACK BUNA 70D
Actual Outside Diameter
11.8 mm (0.46 inch)
Actual Cross Section
1.9 mm (0.075 inch)
Actual Inside Diameter
8 mm (0.315 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity