SH70447 is an AS568-447 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring built to an inside diameter of 8.975 in (227.97 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 9.525 in (241.94 mm). In service, this quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.
As a material, Buna-N (Nitrile) is valued for reliable performance in both static and dynamic service, strong abrasion and tear resistance. Expect good resistance to hydraulic fluids, water, and petroleum-based oils. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving strong acids or ozone and direct sunlight call for a different compound.
Common environments for this compound include construction equipment, agricultural equipment, and general industrial maintenance.
This item is sold individually under part number SH70447. Unit weight is approximately 34.788 g and nominal inside diameter is listed as 9 inch. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
description 568-447 BUNA 70 SQUARE CUT RINGS
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 8.975 inch (227.97 mm)
Actual_OD 9.525 inch (241.94 mm)
ProductCode Description O-Rings - Square/Quad - Commodity