6MM CS X 138MM ID BLACK BUNA 70D

Buna-N O-Ring, 6 x 138 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:
H6X138
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Product Specification

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Part number H6X138 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 138 mm (5.433 in), a cross section of 6 mm (0.236 in), and an outside diameter of 150 mm (5.91 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

As a material, Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs and low compression set under sustained load. It resists water, many alcohols, and petroleum-based oils. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving polar solvents or ketones call for a different compound.

You will find this material specified across general industrial maintenance, fluid power, and agricultural equipment.

Stocked as H6X138 and sold individually. Unit weight is approximately 15.6 g. Review your operating media and conditions against this specification before installation.
Item
H6X138
Description
6MM CS X 138MM ID BLACK BUNA 70D
Actual Outside Diameter
150 mm (5.91 inch)
Actual Cross Section
6 mm (0.236 inch)
Actual Inside Diameter
138 mm (5.433 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity