Krytox 240AZ
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The Krytox 240 AZ aerospace grease (NLGI 1, MIL-PRF-27617 Type I) is in our catalogue — a PFPE-based grease rated to 300 °F, safe for oxygen service and chemically inert.

Available in:

  • 0.5 oz
  • 2 oz
  • 8 oz
  • 0.5 kg

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In stockKrytox 240 AZ Aerospace Grease NLGI 1
Krytox · 240 AZ

Krytox 240 AZ Aerospace Grease NLGI 1

$ 475.82per unit · ex. VAT
Krytox™ 240 AZ is a perfluoropolyether (PFPE)-based aerospace grease designed for extreme conditions, including continuous high temperatures up to 149 °C (300 °F). It is chemically inert, nonflammable, safe for oxygen service, and silicone-free. Qualified to MIL-PRF-27617 Type I, it offers excellent film stability, corrosion protection, and resistance to aqueous solutions.
NATO Number
G-397
Penetration Grade
NLGI 1
Krytox Useful Range
–57 to 149 (–71 to 300) °C (°F)
Corrosion on Copper
1b
Qualification Reference Number
AFPET/PTPT 18-007
NATO NumberG-397
Penetration GradeNLGI 1
Krytox Useful Range–57 to 149 (–71 to 300) °C (°F)
Corrosion on Copper1b
Qualification Reference NumberAFPET/PTPT 18-007
Base Oil Viscosity 40 °C22.8 cSt
Film Stability and Corrosion on SteelPass
Change in Worked Penetration+13
Grease Type MIL PRF 27617 Specified Operating RangeType I/–54 to 149 (–65 to 300) °C (°F)
Evaporation ASTM D259512.9 percent
Liquid Oxygen Impact SensitivityNo Reaction
Dirt Count0/26