3MM CS X 174MM ID BLACK BUNA 70D

Buna-N O-Ring, 3 x 174 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:
H3X174
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Product Specification

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APG stocks the H3X174, a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 174 mm (6.85 in), a cross section of 3 mm (0.118 in), and an outside diameter of 180 mm (7.09 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The material holds up against water, petroleum-based oils, and many alcohols. Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving polar solvents or ketones call for a different compound.

Typical settings include hydraulic and pneumatic systems, automotive, and general industrial maintenance.

Order part number H3X174, sold individually. Unit weight is approximately 4.9554 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H3X174
Description
3MM CS X 174MM ID BLACK BUNA 70D
Actual Outside Diameter
180 mm (7.09 inch)
Actual Cross Section
3 mm (0.118 inch)
Actual Inside Diameter
174 mm (6.85 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity