568-047 GREEN HNBR (HSN) 70 ORINGS

Part number HS70047 is an AS568-047 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 4.489 in (114.02 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 4.629 in (117.58 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

HNBR (Hydrogenated Nitrile) is known for the oil resistance of nitrile with substantially better heat capability and strong resistance to rapid gas decompression. Expect good resistance to petroleum oils and fuels, ozone and weathering, and modern refrigerants. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C). Applications involving strong oxidizing acids or ketones call for a different compound.

It sees regular use in engine timing systems, automotive air conditioning, and heavy-duty powertrain.

Reference part number HS70047 when ordering; the item is sold individually. Nominal inside diameter is listed as 4 1/2 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.