*4359-366Y MINNESOTA RUBBER QUAD RING

This quad-ring is supplied in AS568-359 black Buna-N (Nitrile) 70 Shore A quad profile built to an inside diameter of 5.725 in (145.42 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 6.145 in (156.08 mm), catalogued under part number HQ4359. It provides a dual sealing band on each contact face for improved reliability.

Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, low compression set under sustained load. It resists petroleum-based oils, many alcohols, and greases and lubricants. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ketones or polar solvents are present.

Common environments for this compound include fluid power, automotive, and hydraulic and pneumatic systems.

This item is sold individually under part number HQ4359. Nominal inside diameter is listed as 5 3/4 inch. Review your operating media and conditions against this specification before installation.