568-363 HSN90 DURO ORINGS

Part number HSN90363 is an AS568-363 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring measuring an inside diameter of 6.475 in (164.47 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 6.895 in (175.13 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, HNBR (Hydrogenated Nitrile) offers long service life in refrigerant and oilfield duty, strong resistance to rapid gas decompression. The material holds up against heat and oxidation, ozone and weathering, and modern refrigerants. Rated temperature range runs from -40°F (-40°C) to 325°F (162.8°C) in continuous service. It should not be specified for service in ketones or strong oxidizing acids.

It sees regular use in automotive air conditioning, oilfield and downhole equipment, and commercial refrigeration.

This item is sold individually under part number HSN90363. Nominal inside diameter is listed as 6 1/2 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.