568-254 GREEN HNBR (HSN) 70 ORINGS

APG stocks the HS70254, an AS568-254 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring built to an inside diameter of 5.484 in (139.29 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.762 in (146.35 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

It resists petroleum oils and fuels, heat and oxidation, and sour gas and amine inhibitors. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) is valued for strong resistance to rapid gas decompression, excellent abrasion and tear strength. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). It is not the right choice where strong oxidizing acids or chlorinated hydrocarbons are present.

Common environments for this compound include oilfield and downhole equipment, engine timing systems, and heavy-duty powertrain.

Reference part number HS70254 when ordering; the item is sold individually. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.