AS568-908 HNBR (HSN) Highly Saturated Nitrile 70 Duro O-Ring Black



Qty Discounts Prices
30-602
$0.170		 603-17,199
$0.083		 17,200-53,999
$0.058		 54,000+
$0.046

$0.170

  • Model: H70908-BLK
    Dimensions: Tube Size: 1/2"
    Actual: 0.644"ID X 0.087"CS
    Metric: 16.36mm ID X 2.21mm CS
  • 466 in Stock
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Min Qty:  30

Tube Size OD: 1/2"

Highly Saturated Nitrile Butadiene Rubber

HNBR, or HSN, is a hydroginated NBR for increased saturation of the butadiene segment of the main carbon polymer chain. This gives HNBR better thermal stability, greater tensile strength, greater wear and extrusion resistance, increased resistance to ozone and oxygen, and broader chemical resistance compared to a standard NBR. HNBR It is often seen in automotive air conditioning applications due to its excellent resistance to R-134a refrigerants. With minimal degredation, HNBR may be used from -40°F to 300°F  for extended periods.

HNBR / HSN Recommended uses:

  • Petroleum oils and fluids.
  • Automotive refrigerants (R134-a)
  • Hydrogen sulfide (H2S) or sour gas
  • Carbon Dioxide (CO2)
  • Gasoline
  • Hydraulic fluids
  • L.P. gases
  • Silicone greases and oils
  • Di-ester base lubricants (MIL-L-7808).
  • Ethylene glycol base fluids (Hydrolubes)

Not recommended for:

  • Halogenated hydrocarbons (carbon tetrachloride, trichloroethylene)
  • Nitro hydrocarbons (nitrobenzene, aniline)
  • Phosphate ester hydraulic fluids (Skydrol, Fyrquel, Pydraul).
  • Ketones (MEK, acetone)
  • Sunlight, UV
  • Weather
  • Strong Acids
  • Automotive brake fluid

Compound Info:

  • Highly Saturated Nitrile Butadiene Rubber Peroxid Cured
  • Color: Black
  • Duro: 70
  • FDA: No

Operating temperature: -40° to +300°F