568-210 HSN90 DURO ORINGS

Ordered as HSN90210, this is an AS568-210 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring measuring an inside diameter of 0.734 in (18.64 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.012 in (25.7 mm). The o-ring compresses into its gland to block fluid or gas migration across a joint.

HNBR (Hydrogenated Nitrile) is specified here for excellent abrasion and tear strength, long service life in refrigerant and oilfield duty. The material holds up against heat and oxidation, petroleum oils and fuels, and ozone and weathering. 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 esters.

It sees regular use in automotive air conditioning, heavy-duty powertrain, and oilfield and downhole equipment.

Reference part number HSN90210 when ordering; the item is sold individually. Unit weight is approximately 0.9065 g and nominal inside diameter is listed as 3/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.