The HQ4246 is an AS568-246 black Buna-N (Nitrile) 70 Shore A Quad-Ring with an inside diameter of 4.484 in (113.89 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.762 in (120.95 mm). This quad-ring provides a dual sealing band on each contact face for improved reliability.
Expect good resistance to hydraulic fluids, many alcohols, and greases and lubricants. Buna-N (Nitrile) delivers low compression set under sustained load, strong abrasion and tear resistance. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to polar solvents or automotive brake fluid will shorten service life. The profile itself contributes resistance to the spiral twisting that defeats round-section rings and lower compressive load required to achieve a seal.
Common environments for this compound include fluid power, construction equipment, and automotive.
Order part number HQ4246, 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.
Description *4246-366Y MINNESOTA RUBBER QUAD RING
Actual Inside Diameter 4.484 inch (113.89 mm)
Actual Outside Diameter 4.762 inch (120.95 mm)
Actual Cross Section 0.139 inch (3.53 mm)
Measurement System Imperial
Product Category O-Rings - Square/Quad - Premium