2.5MM CS X 34.5MM ID BLACK BUNA 70D

Buna-N O-Ring, 2.5 x 34.5 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:
H2.5X34.5
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Product Specification

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H2.5X34.5 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 34.5 mm (1.358 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 39.5 mm (1.56 in). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs and low compression set under sustained load. This material stands up to water, hydraulic fluids, and propane and butane. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).

It sees regular use in automotive, agricultural equipment, and fluid power.

This item is sold individually under part number H2.5X34.5. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Item
H2.5X34.5
Description
2.5MM CS X 34.5MM ID BLACK BUNA 70D
Actual Outside Diameter
39.5 mm (1.56 inch)
Actual Cross Section
2.5 mm (0.098 inch)
Actual Inside Diameter
34.5 mm (1.358 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity