568-216 BLACK HNBR HSN70 O-Ring

This o-ring is supplied in AS568-216 black HNBR (Hydrogenated Nitrile) 70 Shore A supplied with an inside diameter of 1.109 in (28.17 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.387 in (35.23 mm), catalogued under part number HSN70216. It compresses into its gland to block fluid or gas migration across a joint.

The compound resists modern refrigerants, sour gas and amine inhibitors, and heat and oxidation. HNBR (Hydrogenated Nitrile) is known for long service life in refrigerant and oilfield duty, strong resistance to rapid gas decompression. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). It is not the right choice where ketones or esters are present.

Common environments for this compound include oilfield and downhole equipment, automotive air conditioning, and heavy-duty powertrain.

Order part number HSN70216, sold individually. Unit weight is approximately 1.1577 g and nominal inside diameter is listed as 1 1/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.