568-325 HSN90 DURO ORINGS

Ordered as HSN90325, this is an AS568-325 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring built to an inside diameter of 1.475 in (37.47 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.895 in (48.13 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

HNBR (Hydrogenated Nitrile) is specified here for strong resistance to rapid gas decompression, long service life in refrigerant and oilfield duty. Expect good resistance to modern refrigerants, heat and oxidation, and petroleum oils and fuels. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C).

Typical settings include commercial refrigeration, engine timing systems, and oilfield and downhole equipment.

Stocked as HSN90325 and sold individually. Unit weight is approximately 3.98 g. Review your operating media and conditions against this specification before installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.