4006-366Y MINNESOTA RUBBER QUAD RING

Ordered as HQ4006, this is an AS568-006 black Buna-N (Nitrile) 70 Shore A Quad-Ring with an inside diameter of 0.114 in (2.9 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.254 in (6.45 mm). The quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

It resists greases and lubricants, water, and many alcohols. Buna-N (Nitrile) is valued for low compression set under sustained load, strong abrasion and tear resistance. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ketones or polar solvents. The profile itself contributes resistance to the spiral twisting that defeats round-section rings and two sealing bands per contact face rather than one.

Maintenance and OEM teams specify it across general industrial maintenance, agricultural equipment, and construction equipment.

Stocked as HQ4006 and sold individually. Nominal inside diameter is listed as 1/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.