APG stocks the HQ4106, an AS568-106 black Buna-N (Nitrile) 70 Shore A quad profile Quad-Ring built to an inside diameter of 0.174 in (4.42 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 0.38 in (9.65 mm). A quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.
The material holds up against propane and butane, greases and lubricants, and water. Buna-N (Nitrile) is specified for low compression set under sustained load, reliable performance in both static and dynamic service. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or strong acids.
Typical settings include automotive, fluid power, and construction equipment.
Order part number HQ4106, sold individually. Nominal inside diameter is listed as 3/16 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description **4106-366Y MINNESOTA RUBBER QUAD RING
Actual_ID 0.174 inch (4.42 mm)
Actual_OD 0.38 inch (9.65 mm)
Actual_CS 0.103 inch (2.62 mm)
ProductCode Description O-Rings - Square/Quad - Premium