Ordered as HSN70241, this is an AS568-241 black HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 3.859 in (98.02 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.137 in (105.08 mm). The 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) is specified for improved ozone and weathering resistance over standard nitrile, the oil resistance of nitrile with substantially better heat capability. Expect good resistance to petroleum oils and fuels, modern refrigerants, and ozone and weathering. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C).
Maintenance and OEM teams specify it across heavy-duty powertrain, oilfield and downhole equipment, and automotive air conditioning.
Reference part number HSN70241 when ordering; the item is sold individually. Unit weight is approximately 3.7204 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description 568-241 BLACK HNBR HSN70 O-Ring
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 3.859 inch (98.02 mm)
Actual_OD 4.137 inch (105.08 mm)
ProductCode Description O-Rings - Bulk - Premium