5MM CS X 30MM ID BLACK BUNA 70D

Buna-N O-Ring, 5 x 30 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:
H5X30
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Product Specification

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The H5X30 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 30 mm (1.181 in), a cross section of 5 mm (0.197 in), and an outside diameter of 40 mm (1.57 in). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

As a material, Buna-N (Nitrile) is specified for the most widely specified general-purpose sealing elastomer and an economical choice for high-volume maintenance programs. Expect good resistance to many alcohols, propane and butane, and greases and lubricants. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Applications involving polar solvents or strong acids call for a different compound.

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

Order part number H5X30, sold individually. Unit weight is approximately 2.6877 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H5X30
Description
5MM CS X 30MM ID BLACK BUNA 70D
Actual Outside Diameter
40 mm (1.57 inch)
Actual Cross Section
5 mm (0.197 inch)
Actual Inside Diameter
30 mm (1.181 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity