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Instantly add the Nitrile 70 Durometer O-Ring, Mil/Aero, MIL-G-21569 (N0674-70 M21569) and 50,000+ more product series to your store or catalog  
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Nitrile 70 Durometer O-Ring, Mil/Aero, MIL-G-21569 (N0674-70 M21569)

Nitrile 70 Durometer O-Ring, Mil/Aero, MIL-G-21569 (N0674-70 M21569)

Brand: Parker Hannifin
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Parker's Nitrile rubber (NBR) is the general term for acrylonitrile butadiene copolymer.
 
The acrylonitrile content of nitrile sealing compounds varies considerably (18% to 50%) and influences the physical properties of the finished material. 

The higher the acrylonitrile content, the better the resistance to oil and fuel. 

At the same time, elasticity and resistance to compression set is adversely affected. 

In view of these opposing realities, a compromise is often drawn, and a medium acrylonitrile content selected. 

NBR has good mechanical properties when compared with other elastomers and high wear resistance. 

NBR is not resistant to weathering and ozone.
Features
  • Heat resistance 
  • Up to 100°C (212°F) with shorter life @ 121°C (250°F) 
  • Cold flexibility 
  • Depending on individual compound, between -34°C and -57°C (-30°F and -70°F) 
  • Chemical resistance 
  • Aliphatic hydrocarbons (propane, butane, petroleum oil, mineral oil and grease, diesel fuel, fuel oils) vegetable and mineral oils and greases 
  • HFA, HFB and HFC hydraulic fluids 
  • Dilute acids, alkali and salt solutions at low temperatures 
  • Water (special compounds up to 100°C) (212°F) 
  • Used for General Purpose, MIL-G-21569 CL 1, UL Listed

Specifications

Brand

Approvals & Certifications

  • MIL/Aero

Color

  • Black

Fluid Compatibility

  • Oils

Inside Diameter (inch)

  • 0.029” to 25.94”

Internally Lubed

  • No

Markets

  • Aerospace

Maximum Working Temperature (°F)

  • 250° F

Meets Certifications

  • UL-Fire, UL-GasAlc, UL-MPSGas, UL-NatGas, UL-FuelOil, UL-HtdFuelOil, UL-Ammonia, UL-DryChem, MIL-G-21569B Class I

Minimum Working Temperature (°F)

  • -30° F

Nominal Hardness

  • 70

Nominal Hardness Range

  • 70

Polymer Family

  • Acrylonitrile-Butadiene Nitrile (NBR, XNBR)

Region of Origin

  • North America

Thermal Application (°F)

  • Standard (-30° to 250° F)

Width (inch)

  • 0.029 to 25.94

Documentation

Data Sheets

Certifications & Approvals

Guide

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