APG stocks the HS70908, an AS568-908 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring with an inside diameter of 0.644 in (16.36 mm), a cross section of 0.087 in (2.21 mm), and an outside diameter of 0.818 in (20.78 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. Additional detail on this item:0.644 Inch X.087 Inch.
HNBR (Hydrogenated Nitrile) is specified for excellent abrasion and tear strength, the oil resistance of nitrile with substantially better heat capability. Expect good resistance to sour gas and amine inhibitors, petroleum oils and fuels, and ozone and weathering. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C). It is not the right choice where strong oxidizing acids or esters are present.
Typical settings include engine timing systems, commercial refrigeration, and automotive air conditioning.
Order part number HS70908, sold individually. Nominal inside diameter is listed as 1/2 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.
description *568-908 GREEN HNBR (HSN) 70 ORINGS
uf_description2 .644 INCH X .087 INCH
Actual_CS 0.087 inch (2.21 mm)
Actual_ID 0.644 inch (16.36 mm)
Actual_OD 0.818 inch (20.78 )
ProductCode Description O-Rings - Bulk - Premium