SB-H70446-2 is an AS568-446 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 8.475 in (215.27 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 9.025 in (229.24 mm). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint. Additional detail on this item: 0.275CSX8.475"IDX9.025"OD.
Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. It resists propane and butane, petroleum-based oils, and water. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or polar solvents are present.
Maintenance and OEM teams specify it across construction equipment, hydraulic and pneumatic systems, and general industrial maintenance.
Order part number SB-H70446-2, sold by the bag. Nominal inside diameter is listed as 8 1/2 inch. Review your operating media and conditions against this specification before installation. 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 Buna 70-446-Black-Pk2
uf_description2 0.275"CSX8.475"IDX9.025"OD
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 8.475 inch (215.27 mm)
Actual_OD 9.025 inch (229.24 mm)
ProductCode Description O-Rings - Bagged - Commodity
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