*568-025 HSN90 DURO ORINGS

APG stocks the HSN90025, an AS568-025 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 1.176 in (29.87 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.316 in (33.43 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The material holds up against sour gas and amine inhibitors, petroleum oils and fuels, and modern refrigerants. HNBR (Hydrogenated Nitrile) is valued for improved ozone and weathering resistance over standard nitrile, long service life in refrigerant and oilfield duty. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C). It is not the right choice where ketones or strong oxidizing acids are present.

Typical settings include oilfield and downhole equipment, engine timing systems, and heavy-duty powertrain.

Reference part number HSN90025 when ordering; the item is sold individually. Unit weight is approximately 0.3361 g and nominal inside diameter is listed as 1 3/16 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.