Nitrile 90 Durometer O-Ring, Low Temperature, Mil/Aero (NM507-90) | Product Series

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Nitrile 90 Durometer O-Ring, Low Temperature, Mil/Aero (NM507-90)

Nitrile 90 Durometer O-Ring, Low Temperature, Mil/Aero (NM507-90)

Parker's nitrile rubber (NBR) O-rings are very compatible with oils and gases.

Technical Specifications

  • For Fluid Type: Oil
  • Inside Diameter: 0.029 to 25.940 inch
  • Industry: Aerospace
  • Durometer: 90 Shore A
  • Maximum Operating Temperature: 180 °F
  • Thermal Application Type: Low Temperature (<-30°F)
  • Minimum Operating Temperature: -65 °F
  • Color: Black
  • Polymer Material Options: Nitrile Butadiene Rubber (NBR, XNBR)
  • Internally Lubricated: No
  • Width: 0.04 to 0.275 inch
  • Region of Origin: North America
  • Trade Name: Buna, Buna N, Buna 90
  • Specifications Met: MIL/Aero, AMS-P-5510, MIL-P-5510C, MS28778
Safety Warning

Full Product Description

Parker's 90 durometer black nitrile (NBR), NM507-90 is an excellent general purpose material that has good mechanical properties when compared to other elastomers. NBR is not resistant to weathering and ozone.


Temperature Range: -65°F to 180°F (-53°C to 82°C)


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 up to 212°F (100°C)


Not compatible with:

• Fuels of high aromatic content, aromatic hydrocarbons (benzene), chlorinated hydrocarbons (trichloroethylene), strong acids, glycols, ozone, weather, atmospheric aging, and polar solvents (ketone, acetone, acetic acid, ethylene-ester)



*Custom sizes and coatings/markings are available upon request. Contact Parker O-Ring Division at 859-269-2351 for design and pricing assistance.

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