4454-366Y MINNESOTA RUBBER QUAD RING

Part number HQ4454 is an AS568-454 black Buna-N (Nitrile) 70 Shore A Quad-Ring built to an inside diameter of 12.475 in (316.87 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 13.025 in (330.84 mm). A quad-ring provides a dual sealing band on each contact face for improved reliability.

Expect good resistance to hydraulic fluids, greases and lubricants, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs and low compression set under sustained load. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). 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 automotive, construction equipment, and fluid power.

Order part number HQ4454, sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.