568-248 HSN90 DURO ORINGS

The HSN90248 is an AS568-248 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 4.734 in (120.24 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.012 in (127.3 mm). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

HNBR (Hydrogenated Nitrile) is specified here for long service life in refrigerant and oilfield duty, improved ozone and weathering resistance over standard nitrile. The compound resists heat and oxidation, ozone and weathering, and sour gas and amine inhibitors. Rated temperature range runs from -40°F (-40°C) to 325°F (162.8°C) in continuous service.

Maintenance and OEM teams specify it across automotive air conditioning, engine timing systems, and heavy-duty powertrain.

Reference part number HSN90248 when ordering; the item is sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.