568-428 HSN90 DURO ORINGS

The HSN90428 is an AS568-428 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring with an inside diameter of 4.85 in (123.19 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 5.4 in (137.16 mm). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.

HNBR (Hydrogenated Nitrile) is specified here for strong resistance to rapid gas decompression, improved ozone and weathering resistance over standard nitrile. The material holds up against modern refrigerants, heat and oxidation, and ozone and weathering. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C).

Typical settings include heavy-duty powertrain, engine timing systems, and commercial refrigeration.

This item is sold individually under part number HSN90428. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.