Part number HS70344 is an AS568-344 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring with an inside diameter of 3.85 in (97.79 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.27 in (108.46 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.
As a material, HNBR (Hydrogenated Nitrile) is specified for excellent abrasion and tear strength, strong resistance to rapid gas decompression. This material stands up to petroleum oils and fuels, heat and oxidation, and ozone and weathering. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C).
You will find this material specified across automotive air conditioning, oilfield and downhole equipment, and heavy-duty powertrain.
This item is sold individually under part number HS70344. Nominal inside diameter is listed as 3 7/8 inch. Review your operating media and conditions against this specification before installation.
description *568-344 GREEN HNBR (HSN) 70 ORINGS
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 3.85 inch (97.79 mm)
Actual_OD 4.27 inch (108.46 mm)
ProductCode Description O-Rings - Bulk - Premium