HSN (HNBR) 80 568-434

Ordered as HSN80434, this is an AS568-434 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring with an inside diameter of 5.6 in (142.24 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 6.15 in (156.21 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

HNBR (Hydrogenated Nitrile) is specified here for long service life in refrigerant and oilfield duty, oil resistance of nitrile with substantially better heat capability. The material holds up against ozone and weathering, petroleum oils and fuels, and heat and oxidation. Published continuous service range is -40°F (-40°C) to 325°F (162.8°C). It should not be specified for service in chlorinated hydrocarbons or strong oxidizing acids.

Common environments for this compound include oilfield and downhole equipment, automotive air conditioning, and engine timing systems.

Reference part number HSN80434 when ordering; the item is sold individually. Nominal inside diameter is listed as 5 5/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.