568-452 GREEN HNBR (HSN) 70 ORINGS

Ordered as HS70452, this is an AS568-452 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 11.475 in (291.47 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 12.025 in (305.44 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The compound resists petroleum oils and fuels, heat and oxidation, and modern refrigerants. HNBR (Hydrogenated Nitrile) is known for excellent abrasion and tear strength, improved ozone and weathering resistance over standard nitrile. Published continuous service range is -40°F (-40°C) to 325°F (162.8°C). Applications involving ketones or esters call for a different compound.

You will find this material specified across commercial refrigeration, automotive air conditioning, and engine timing systems.

Order part number HS70452, sold individually. Check the compound against your process media, pressure and temperature before committing to a design. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.