4MM CS X 67MM ID BLACK BUNA 70D

Buna-N O-Ring, 4 x 67 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:
H4X67
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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 67 mm (2.638 in), a cross section of 4 mm (0.157 in), and an outside diameter of 75 mm (2.95 in), catalogued under part number H4X67. It creates a positive seal at flange, piston and rod interfaces without added hardware.

As a material, Buna-N (Nitrile) is known for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. Expect good resistance to greases and lubricants, petroleum-based oils, and hydraulic fluids. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.

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

Order part number H4X67, sold individually. Unit weight is approximately 3.423 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
H4X67
Description
4MM CS X 67MM ID BLACK BUNA 70D
Actual Outside Diameter
75 mm (2.95 inch)
Actual Cross Section
4 mm (0.157 inch)
Actual Inside Diameter
67 mm (2.638 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity