3MM CS X 194.5MM ID BLACK BUNA 70D

Buna-N O-Ring, 3 x 194.5 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:
H3X194.5
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Product Specification

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APG stocks the H3X194.5, a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 194.5 mm (7.657 in), a cross section of 3 mm (0.118 in), and an outside diameter of 200.5 mm (7.89 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. It resists greases and lubricants, petroleum-based oils, and many alcohols. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in ozone and direct sunlight or strong acids.

You will find this material specified across hydraulic and pneumatic systems, fluid power, and construction equipment.

Reference part number H3X194.5 when ordering; the item is sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Item
H3X194.5
Description
3MM CS X 194.5MM ID BLACK BUNA 70D
Actual Outside Diameter
200.5 mm (7.89 inch)
Actual Cross Section
3 mm (0.118 inch)
Actual Inside Diameter
194.5 mm (7.657 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity