2.5MM CS X 63MM ID BLACK BUNA 70D

Buna-N O-Ring, 2.5 x 63 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:
H2.5X63
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Product Specification

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H2.5X63 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 63 mm (2.48 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 68 mm (2.68 in). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies.

It resists many alcohols, greases and lubricants, and water. Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, low compression set under sustained load. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

Typical settings include fluid power, general industrial maintenance, and automotive.

H2.5X63 ships individually. Unit weight is approximately 1.2336 g. Review your operating media and conditions against this specification before installation.
Item
H2.5X63
Description
2.5MM CS X 63MM ID BLACK BUNA 70D
Actual Outside Diameter
68 mm (2.68 inch)
Actual Cross Section
2.5 mm (0.098 inch)
Actual Inside Diameter
63 mm (2.48 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity