568-352 HSN90 DURO ORINGS

Ordered as HSN90352, this is an AS568-352 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring with an inside diameter of 4.85 in (123.19 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.27 in (133.86 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

As a material, HNBR (Hydrogenated Nitrile) is specified for strong resistance to rapid gas decompression, excellent abrasion and tear strength. Expect good resistance to modern refrigerants, petroleum oils and fuels, and sour gas and amine inhibitors. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C).

Maintenance and OEM teams specify it across automotive air conditioning, engine timing systems, and commercial refrigeration.

Reference part number HSN90352 when ordering; the item is sold individually. Unit weight is approximately 11.635 g. 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.