The HSN90037 is an AS568-037 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring measuring an inside diameter of 2.489 in (63.22 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 2.629 in (66.78 mm). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.
HNBR (Hydrogenated Nitrile) is valued for long service life in refrigerant and oilfield duty, the oil resistance of nitrile with substantially better heat capability. Expect good resistance to sour gas and amine inhibitors, modern refrigerants, and petroleum oils and fuels. Published continuous service range is -40°F (-40°C) to 325°F (162.8°C). Verify compatibility before use with chlorinated hydrocarbons or esters.
You will find this material specified across oilfield and downhole equipment, heavy-duty powertrain, and automotive air conditioning.
Order part number HSN90037, sold individually. 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.
Description 568-037 HSN90 DURO ORINGS
Actual Cross Section 0.07 inch (1.78 mm)
Actual Inside Diameter 2.489 inch (63.22 mm)
Actual Outside Diameter 2.629 inch (66.78 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium