568-008 HSN90 DURO ORINGS

APG stocks the HSN90008, an AS568-008 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 0.176 in (4.47 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.316 in (8.03 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, HNBR (Hydrogenated Nitrile) offers the oil resistance of nitrile with substantially better heat capability, improved ozone and weathering resistance over standard nitrile. The compound resists sour gas and amine inhibitors, modern refrigerants, and petroleum oils and fuels. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C).

Maintenance and OEM teams specify it across oilfield and downhole equipment, automotive air conditioning, and engine timing systems.

Order part number HSN90008, sold individually. Unit weight is approximately 0.065 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.