568-475 GREEN HNBR (HSN) 70 ORINGS

Part number HS70475 is an AS568-475 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 25.94 in (658.88 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 26.49 in (672.85 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

HNBR (Hydrogenated Nitrile) is specified here for excellent abrasion and tear strength, long service life in refrigerant and oilfield duty. It resists petroleum oils and fuels, sour gas and amine inhibitors, and heat and oxidation. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). Exposure to chlorinated hydrocarbons or esters will shorten service life.

Common environments for this compound include engine timing systems, automotive air conditioning, and commercial refrigeration.

Order part number HS70475, sold individually. Nominal inside diameter is listed as 26 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.