5MM CS X 350MM ID BLACK BUNA 70D

Buna-N O-Ring, 5 x 350 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:
H5X350
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Product Specification

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The H5X350 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 350 mm (13.78 in), a cross section of 5 mm (0.197 in), and an outside diameter of 360 mm (14.17 in). This o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Expect good resistance to hydraulic fluids, water, and greases and lubricants. Buna-N (Nitrile) delivers reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Verify compatibility before use with ketones or polar solvents.

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

Order part number H5X350, sold individually. Unit weight is approximately 26.815 g. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H5X350
Description
5MM CS X 350MM ID BLACK BUNA 70D
Actual Outside Diameter
360 mm (14.17 inch)
Actual Cross Section
5 mm (0.197 inch)
Actual Inside Diameter
350 mm (13.78 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity