HSN (HNBR) 80 568-009

HSN80009 is an AS568-009 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring built to an inside diameter of 0.208 in (5.28 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.348 in (8.84 mm). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.

HNBR (Hydrogenated Nitrile) is valued for the oil resistance of nitrile with substantially better heat capability and strong resistance to rapid gas decompression. The material holds up against ozone and weathering, petroleum oils and fuels, and modern refrigerants. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). It is not the right choice where esters or ketones are present.

It sees regular use in oilfield and downhole equipment, automotive air conditioning, and heavy-duty powertrain.

Stocked as HSN80009 and sold individually. Unit weight is approximately 0.073 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.