568-038 HSN90 DURO ORINGS

Ordered as HSN90038, this is an AS568-038 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring measuring an inside diameter of 2.614 in (66.4 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 2.754 in (69.95 mm). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

This material stands up to ozone and weathering, petroleum oils and fuels, and modern refrigerants. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) is known for strong resistance to rapid gas decompression and the oil resistance of nitrile with substantially better heat capability. 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 engine timing systems, oilfield and downhole equipment, and automotive air conditioning.

This item is sold individually under part number HSN90038. As always, verify media compatibility and operating conditions against the requirements of your specific application.