568-043 HSN90 DURO ORINGS

Ordered as HSN90043, this is an AS568-043 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring built to an inside diameter of 3.489 in (88.62 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 3.629 in (92.18 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Expect good resistance to sour gas and amine inhibitors, petroleum oils and fuels, and modern refrigerants. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) is widely chosen for strong resistance to rapid gas decompression and the oil resistance of nitrile with substantially better heat capability. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C).

Common environments for this compound include commercial refrigeration, automotive air conditioning, and engine timing systems.

Stocked as HSN90043 and sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.