568-202 HSN90 DURO ORINGS

Ordered as HSN90202, this is an AS568-202 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 0.234 in (5.94 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 0.512 in (13 mm). The o-ring compresses into its gland to block fluid or gas migration across a joint.

HNBR (Hydrogenated Nitrile) is specified here for improved ozone and weathering resistance over standard nitrile, oil resistance of nitrile with substantially better heat capability. It resists heat and oxidation, ozone and weathering, 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 esters or chlorinated hydrocarbons.

Common environments for this compound include heavy-duty powertrain, commercial refrigeration, and oilfield and downhole equipment.

This item is sold individually under part number HSN90202. Nominal inside diameter is listed as 1/4 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.