This o-ring is supplied in AS568-284 green HNBR (Hydrogenated Nitrile) 70 Shore A measuring an inside diameter of 17.955 in (456.06 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 18.233 in (463.12 mm), catalogued under part number HS70284. It creates a positive seal at flange, piston and rod interfaces without added hardware.
HNBR (Hydrogenated Nitrile) is valued for improved ozone and weathering resistance over standard nitrile, the oil resistance of nitrile with substantially better heat capability. This material stands up to heat and oxidation, petroleum oils and fuels, and modern refrigerants. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C).
Common environments for this compound include commercial refrigeration, automotive air conditioning, and oilfield and downhole equipment.
Reference part number HS70284 when ordering; the item is sold individually. Nominal inside diameter is listed as 18 inch. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.
description 568-284 GREEN HNBR (HSN) 70 ORINGS
uf_description2 17.955" (456.06MM) ID X .139" (3.53MM
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 17.955 inch (456.06 mm)
Actual_OD 18.233 inch (463.12 mm)
ProductCode Description O-Rings - Bulk - Premium