568-281 HSN90 DURO ORINGS

APG stocks the HSN90281, an AS568-281 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring with an inside diameter of 14.984 in (380.59 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 15.262 in (387.65 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

This material stands up to heat and oxidation, petroleum oils and fuels, and modern refrigerants. HNBR (Hydrogenated Nitrile) offers long service life in refrigerant and oilfield duty, the oil resistance of nitrile with substantially better heat capability. Published continuous service range is -40°F (-40°C) to 325°F (162.8°C).

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

Stocked as HSN90281 and sold individually. Nominal inside diameter is listed as 15 inch. Check the compound against your process media, pressure and temperature before committing to a design.