3MM CS X 25.2MM ID BLACK BUNA 70D

Buna-N O-Ring, 3 x 25.2 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:
H3X25.2
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Product Specification

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This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 25.2 mm (0.992 in), a cross section of 3 mm (0.118 in), and an outside diameter of 31.2 mm (1.23 in), catalogued under part number H3X25.2. It creates a positive seal at flange, piston and rod interfaces without added hardware.

Expect good resistance to water, hydraulic fluids, and many alcohols. Buna-N (Nitrile) is specified for the most widely specified general-purpose sealing elastomer and low compression set under sustained load. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to strong acids or ketones will shorten service life.

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

H3X25.2 ships individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Item
H3X25.2
Description
3MM CS X 25.2MM ID BLACK BUNA 70D
Actual Outside Diameter
31.2 mm (1.23 inch)
Actual Cross Section
3 mm (0.118 inch)
Actual Inside Diameter
25.2 mm (0.992 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity