This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 24.5 mm (0.965 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 29.5 mm (1.16 in), catalogued under part number H2.5X24.5. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
This material stands up to propane and butane, petroleum-based oils, and water. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for low compression set under sustained load, reliable performance in both static and dynamic service. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where polar solvents or ozone and direct sunlight are present.
It sees regular use in hydraulic and pneumatic systems, agricultural equipment, and automotive.
Order part number H2.5X24.5, sold individually. Check the compound against your process media, pressure and temperature before committing to a design.
description 2.5MM CS X 24.5MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 29.5 mm (1.16 inch)
Actual_CS 2.5 mm (0.098 inch)
Actual_ID 24.5 mm (0.965 inch)
ProductCode Description O-Rings - Metric - Commodity