Ordered as H2.5X79, this is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 79 mm (3.11 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 84 mm (3.31 in). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.
Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. Expect good resistance to hydraulic fluids, greases and lubricants, and propane and butane. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where polar solvents or ketones are present.
It sees regular use in automotive, hydraulic and pneumatic systems, and construction equipment.
Stocked as H2.5X79 and sold individually. Unit weight is approximately 1.5569 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description 2.5MM CS X 79MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 84 mm (3.31 inch)
Actual_CS 2.5 mm (0.098 inch)
Actual_ID 79 mm (3.11 inch)
ProductCode Description O-Rings - Metric - Commodity