4333-366Y MINNESOTA RUBBER QUAD RING

HQ4333 is an AS568-333 black Buna-N (Nitrile) 70 Shore A Quad-Ring built to an inside diameter of 2.475 in (62.87 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 2.895 in (73.53 mm). In service, this quad-ring provides a dual sealing band on each contact face for improved reliability.

The material holds up against propane and butane, greases and lubricants, and petroleum-based oils. Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in automotive brake fluid or ketones. The profile itself contributes lower compressive load required to achieve a seal and a parting line located away from the sealing surface.

You will find this material specified across fluid power, construction equipment, and automotive.

Stocked as HQ4333 and sold individually. Nominal inside diameter is listed as 2 1/2 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.