4453-366Y MINNESOTA RUBBER QUAD RING

APG stocks the HQ4453, an AS568-453 black Buna-N (Nitrile) 70 Shore A Quad-Ring with an inside diameter of 11.975 in (304.17 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 12.525 in (318.14 mm). A quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

This material stands up to petroleum-based oils, water, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs and low compression set under sustained load. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong acids or ozone and direct sunlight are present. The profile itself contributes two sealing bands per contact face rather than one and resistance to the spiral twisting that defeats round-section rings.

Typical settings include agricultural equipment, automotive, and fluid power.

Order part number HQ4453, sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.