*4105-366Y MINNESOTA RUBBER QUAD RING

This quad-ring is supplied in AS568-105 black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 0.143 in (3.63 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 0.349 in (8.86 mm), catalogued under part number HQ4105. It resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

Buna-N (Nitrile) delivers low compression set under sustained load, reliable performance in both static and dynamic service. It resists propane and butane, many alcohols, and hydraulic fluids. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in ozone and direct sunlight or polar solvents. The profile itself contributes two sealing bands per contact face rather than one and resistance to the spiral twisting that defeats round-section rings.

Common environments for this compound include hydraulic and pneumatic systems, general industrial maintenance, and construction equipment.

Stocked as HQ4105 and sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.