568-309 GREEN HNBR (HSN) 70 ORINGS

APG stocks the HS70309, an AS568-309 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 0.412 in (10.46 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 0.832 in (21.13 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

It resists modern refrigerants, ozone and weathering, and heat and oxidation. HNBR (Hydrogenated Nitrile) offers strong resistance to rapid gas decompression, excellent abrasion and tear strength. Rated temperature range runs from -40°F (-40°C) to 325°F (162.8°C) in continuous service. Verify compatibility before use with strong oxidizing acids or ketones.

Maintenance and OEM teams specify it across heavy-duty powertrain, commercial refrigeration, and oilfield and downhole equipment.

HS70309 ships individually. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.