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.
description 2.5MM CS X 122MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 127 mm (5 inch)
Actual_CS 2.5 mm (0.098 inch)
Actual_ID 122 mm (4.803 inch)
ProductCode Description O-Rings - Metric - Commodity