2.5MM CS X 122MM ID BLACK BUNA 70D

Buna-N O-Ring, 2.5 x 122 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:
H2.5X122
Please login to see price and add to cart

Product Specification

-
Ordered as H2.5X122, this is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 122 mm (4.803 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 127 mm (5 in). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, Buna-N (Nitrile) offers reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. This material stands up to petroleum-based oils, hydraulic fluids, and water. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving ketones or polar solvents call for a different compound.

Typical settings include agricultural equipment, automotive, and construction equipment.

This item is sold individually under part number H2.5X122. Unit weight is approximately 2.3692 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
Item
H2.5X122
Description
2.5MM CS X 122MM ID BLACK BUNA 70D
Actual Outside Diameter
127 mm (5 inch)
Actual Cross Section
2.5 mm (0.098 inch)
Actual Inside Diameter
122 mm (4.803 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity