568-284 BUNA 70 SQUARE CUT RINGS

This quad-ring is supplied in AS568-284 black Buna-N (Nitrile) 70 Shore A square profile with an inside diameter of 17.955 in (456.06 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 18.233 in (463.12 mm), catalogued under part number SH70284. It provides a dual sealing band on each contact face for improved reliability.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, economical choice for high-volume maintenance programs. Expect good resistance to petroleum-based oils, greases and lubricants, and many alcohols. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or automotive brake fluid.

Common environments for this compound include general industrial maintenance, construction equipment, and fluid power.

SH70284 ships individually. 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.