Ordered as HSN80128, this is an AS568-128 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring with an inside diameter of 1.487 in (37.77 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.693 in (43 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.
HNBR (Hydrogenated Nitrile) is known for excellent abrasion and tear strength, strong resistance to rapid gas decompression. This material stands up to petroleum oils and fuels, ozone and weathering, and sour gas and amine inhibitors. 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.
You will find this material specified across heavy-duty powertrain, oilfield and downhole equipment, and commercial refrigeration.
Order part number HSN80128, sold individually. Nominal inside diameter is listed as 1 1/2 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Description HSN (HNBR) 80 568-128
Actual Cross Section 0.103 inch (2.62 mm)
Actual Inside Diameter 1.487 inch (37.77 mm)
Actual Outside Diameter 1.693 inch (43 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium