4MM CS X 195MM ID BLACK BUNA 70D

Buna-N O-Ring, 4 x 195 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:
H4X195
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Product Specification

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This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A with an inside diameter of 195 mm (7.677 in), a cross section of 4 mm (0.157 in), and an outside diameter of 203 mm (7.99 in), catalogued under part number H4X195. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. It resists greases and lubricants, petroleum-based oils, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ketones or polar solvents.

It sees regular use in construction equipment, fluid power, and general industrial maintenance.

Order part number H4X195, sold individually. Unit weight is approximately 9.6002 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
H4X195
Description
4MM CS X 195MM ID BLACK BUNA 70D
Actual Outside Diameter
203 mm (7.99 inch)
Actual Cross Section
4 mm (0.157 inch)
Actual Inside Diameter
195 mm (7.677 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity