This quad-ring is supplied in AS568-366 black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 7.225 in (183.52 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 7.645 in (194.18 mm), catalogued under part number HQ4366. It provides a dual sealing band on each contact face for improved reliability.
As a material, Buna-N (Nitrile) is valued for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. This material stands up to many alcohols, hydraulic fluids, and petroleum-based oils. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ozone and direct sunlight or ketones. The profile itself contributes resistance to the spiral twisting that defeats round-section rings and lower compressive load required to achieve a seal.
It sees regular use in construction equipment, general industrial maintenance, and hydraulic and pneumatic systems.
Reference part number HQ4366 when ordering; the item is sold individually. Check the compound against your process media, pressure and temperature before committing to a design.
description **4366-366Y MINNESOTA RUBBER QUAD RING
Actual_ID 7.225 inch (183.52 mm)
Actual_OD 7.645 inch (194.18 mm)
Actual_CS 0.21 inch (5.33 mm)
ProductCode Description O-Rings - Square/Quad - Premium