HSN (HNBR) 80 568-032

Part number HSN80032 is an AS568-032 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring built to an inside diameter of 1.864 in (47.35 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 2.004 in (50.9 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

The material holds up against modern refrigerants, petroleum oils and fuels, and ozone and weathering. HNBR (Hydrogenated Nitrile) delivers strong resistance to rapid gas decompression and the oil resistance of nitrile with substantially better heat capability. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C). Verify compatibility before use with strong oxidizing acids or ketones.

Maintenance and OEM teams specify it across heavy-duty powertrain, automotive air conditioning, and commercial refrigeration.

Reference part number HSN80032 when ordering; the item is sold individually. Nominal inside diameter is listed as 1 7/8 inch. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.