2.5MM CS X 86MM ID BLACK BUNA 70D

Buna-N O-Ring, 2.5 x 86 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:
H2.5X86
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Product Specification

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The H2.5X86 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 86 mm (3.386 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 91 mm (3.58 in). This o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, most widely specified general-purpose sealing elastomer. It resists petroleum-based oils, hydraulic fluids, and many alcohols. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving automotive brake fluid or ketones call for a different compound.

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

Reference part number H2.5X86 when ordering; the item is sold individually. Unit weight is approximately 1.66 g. Review your operating media and conditions against this specification before installation.
Item
H2.5X86
Description
2.5MM CS X 86MM ID BLACK BUNA 70D
Actual Outside Diameter
91 mm (3.58 inch)
Actual Cross Section
2.5 mm (0.098 inch)
Actual Inside Diameter
86 mm (3.386 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity