3.5MM CS X 108MM ID BLACK BUNA 70D

Buna-N O-Ring, 3.5 x 108 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:
H3.5X108
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Product Specification

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H3.5X108 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 108 mm (4.252 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 115 mm (4.53 in). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Buna-N (Nitrile) is specified for strong abrasion and tear resistance, reliable performance in both static and dynamic service. The material holds up against greases and lubricants, hydraulic fluids, and propane and butane. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in strong acids or automotive brake fluid.

You will find this material specified across agricultural equipment, construction equipment, and hydraulic and pneumatic systems.

H3.5X108 ships individually. Unit weight is approximately 4.1497 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Item
H3.5X108
Description
3.5MM CS X 108MM ID BLACK BUNA 70D
Actual Outside Diameter
115 mm (4.53 inch)
Actual Cross Section
3.5 mm (0.138 inch)
Actual Inside Diameter
108 mm (4.252 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity