This o-ring is supplied in AS568-039 black Buna-N (Nitrile) 70 Shore A with an inside diameter of 2.739 in (69.57 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 2.879 in (73.13 mm), catalogued under part number SB-H70039-100. It compresses into its gland to block fluid or gas migration across a joint. Additional detail on this item: 2.875IDX2.75"ODX.0625"CS.
Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. It resists petroleum-based oils, hydraulic fluids, and water. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to ozone and direct sunlight or automotive brake fluid will shorten service life.
Common environments for this compound include fluid power, agricultural equipment, and general industrial maintenance.
Order part number SB-H70039-100, sold by the bag. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
description Buna 70-039-Black-Pk100
uf_description2 2.875"IDX2.75"ODX.0625"CS
Actual_CS 0.07 inch (1.78 mm)
Actual_ID 2.739 inch (69.57 mm)
Actual_OD 2.879 inch (73.13 mm)
ProductCode Description O-Rings - Bagged - Commodity
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