5MM CS X 12MM ID BLACK BUNA 70D

Buna-N O-Ring, 5 x 12 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:
H5X12
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Product Specification

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This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 12 mm (0.472 in), a cross section of 5 mm (0.197 in), and an outside diameter of 22 mm (0.87 in), catalogued under part number H5X12. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, low compression set under sustained load. This material stands up to petroleum-based oils, propane and butane, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ozone and direct sunlight or strong acids.

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

H5X12 ships individually. Unit weight is approximately 1.3202 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
H5X12
Description
5MM CS X 12MM ID BLACK BUNA 70D
Actual Outside Diameter
22 mm (0.87 inch)
Actual Cross Section
5 mm (0.197 inch)
Actual Inside Diameter
12 mm (0.472 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity