*4265-366Y MINNESOTA RUBBER QUAD RING

Part number HQ4265 is an AS568-265 black Buna-N (Nitrile) 70 Shore A Quad-Ring supplied with an inside diameter of 7.734 in (196.44 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 8.012 in (203.5 mm). A quad-ring provides a dual sealing band on each contact face for improved reliability.

This material stands up to water, many alcohols, and greases and lubricants. Buna-N (Nitrile) is valued for low compression set under sustained load and an economical choice for high-volume maintenance programs. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving ketones or strong acids call for a different compound. The profile itself contributes two sealing bands per contact face rather than one and resistance to the spiral twisting that defeats round-section rings.

You will find this material specified across general industrial maintenance, hydraulic and pneumatic systems, and fluid power.

Stocked as HQ4265 and sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.