5MM CS X 118MM ID BLACK BUNA 70D

Buna-N O-Ring, 5 x 118 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:
H5X118
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Product Specification

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APG stocks the H5X118, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 118 mm (4.646 in), a cross section of 5 mm (0.197 in), and an outside diameter of 128 mm (5.04 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Buna-N (Nitrile) is valued for reliable performance in both static and dynamic service, low compression set under sustained load. This material stands up to water, many alcohols, and petroleum-based oils. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).

Common environments for this compound include construction equipment, hydraulic and pneumatic systems, and automotive.

Stocked as H5X118 and sold individually. Unit weight is approximately 9.27 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. 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
H5X118
Description
5MM CS X 118MM ID BLACK BUNA 70D
Actual Outside Diameter
128 mm (5.04 inch)
Actual Cross Section
5 mm (0.197 inch)
Actual Inside Diameter
118 mm (4.646 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity