3.5MM CS X 98MM ID BLACK BUNA 70D

Buna-N O-Ring, 3.5 x 98 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:
H3.5X98
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Product Specification

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This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 98 mm (3.858 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 105 mm (4.13 in), catalogued under part number H3.5X98. It delivers dependable bidirectional sealing in a compact groove envelope.

The compound resists hydraulic fluids, greases and lubricants, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for low compression set under sustained load, strong abrasion and tear resistance. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving ketones or strong acids call for a different compound.

You will find this material specified across hydraulic and pneumatic systems, agricultural equipment, and general industrial maintenance.

Order part number H3.5X98, sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Item
H3.5X98
Description
3.5MM CS X 98MM ID BLACK BUNA 70D
Actual Outside Diameter
105 mm (4.13 inch)
Actual Cross Section
3.5 mm (0.138 inch)
Actual Inside Diameter
98 mm (3.858 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity