*568-353 HSN90 DURO ORINGS

HSN90353 is an AS568-353 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 4.975 in (126.37 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.395 in (137.03 mm). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, HNBR (Hydrogenated Nitrile) offers long service life in refrigerant and oilfield duty, strong resistance to rapid gas decompression. This material stands up to sour gas and amine inhibitors, petroleum oils and fuels, and modern refrigerants. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). Verify compatibility before use with ketones or strong oxidizing acids.

It sees regular use in heavy-duty powertrain, commercial refrigeration, and automotive air conditioning.

Stocked as HSN90353 and sold individually. Unit weight is approximately 11.926 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.