HS70311 is an AS568-311 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring with an inside diameter of 0.537 in (13.64 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 0.957 in (24.31 mm). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.
As a material, HNBR (Hydrogenated Nitrile) is known for strong resistance to rapid gas decompression, improved ozone and weathering resistance over standard nitrile. The compound resists sour gas and amine inhibitors, heat and oxidation, and ozone and weathering. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C).
Typical settings include automotive air conditioning, engine timing systems, and commercial refrigeration.
HS70311 ships individually. Check the compound against your process media, pressure and temperature before committing to a design.
Description 568-311 GREEN HNBR (HSN) 70 ORINGS
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 0.537 inch (13.64 mm)
Actual Outside Diameter 0.957 inch (24.31 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium