Brand
Shell
Type
Aviation transmission fluids
Primary standard
NATO Code H-544
Manufacturer code
001O3987

AeroShell Fluid 61

Fire-resistant synthetic preservative hydraulic fluid for aircraft

Specifications

Brand
Shell
Manufacturer code
001O3987
Availability
On order

Manufacturer's description

Synthetic hydrocarbon hydraulic fluid for aircraft. AeroShell Fluid 61 is a synthetic hydrocarbon base hydraulic fluid specifically inhibited to provide excellent oxidation stability for the oil and good corrosion preventive protection to the hydraulic system.

Applications

  • AeroShell Fluid 61 is designed for use where a fire resistant preservative grade hydraulic fluid is required and is suitable for operational use as well as preservation of components during storage and shipment.
  • AeroShell Fluid 61 has an operating temperature range of –40 0 C to +200 0 C.
  • AeroShell Fluid 61 is compatible with all AeroShell Hydraulic Fluids.
  • AeroShell Fluid 61 is a synthetic oil and should not be used in contact with incompatible seal materials.
  • Chlorinated solvents should not be used for cleaning hydraulic components which use AeroShell Fluid 61. The residual solvent contaminates the hydraulic fluid and may lead to corrosion.

Performance & benefits

  • The previous US specification revision covered two grades, Type I and Type II. The only difference between the two grades is that Type II is dyed red for aerospace use whereas Type I is undyed

Standards & approvals

  • NATO Code H-544
  • MIL-PRF-46170E Type I

Typical characteristics

PropertyTypical valueMethod
Oil typeSynthetic Hydrocarbon
Relative density @15.6/150.849ASTM D4052 /
Kinematic viscosity @40°Cmm2/s15.8ASTM D445
Kinematic viscosity @100°Cmm2/s3.8ASTM D445
Kinematic viscosity @–40°Cmm2/s2191ASTM D445
Pour point°C- 69ASTM D97
Flash point°C222ASTM D92
Fire point (COC)°C246ASTM D92
Total acid numbermg KOH/g0.08ASTM D664
Evaporation loss 22h@%m4.32ASTM D972
Low temperature stability 72PassesFED-STD-791-
Autoignition Temperature°C363ASTM E659
Water contentmg/kg30ASTM D6304
Gravimetric analysismg/100ml0ASTM D4898
Particulate contaminationPassesFED-STD-791-
Foaming characteristics Sequences I,II,III Tendency/Stabilityml/mlPassesASTM D892
Trace sedimentml0.000ASTM D2273
Rubber swell, L Rubber @70°C%15.1ASTM D4289
4-Ball Wear, 75°C - scar dia147N mm0.27ASTM D4172
4-Ball Wear, 75°C - scar dia392N mm0.50ASTM D4172
Rust preventionPassesASTM D1748
Corrosion and oxidation Stability168h atPassesASTM D4636
Corrosion and oxidation Stability (168 hrs @121°C) - Viscosity change @40°C%0.38ASTM D4636
Corrosion and oxidation Stability168h at mgKOH/g0.11ASTM D4636
CorrosivityPassesASTM D6547
Water SensitivityMIL-PRF-4617097.6

Complete documentation

We email you the sheets listed below in a single archive. No account, no order required.

  • TDSENMay 2026
  • SDSENJune 2026
  • SDSROJune 2026

Where should the files go?

We send the archive to the address below. It is the only field we need — the rest only help us reach you if a sheet is missing.

What you get

    Str. Soporului, nr. 12, Cluj-NapocaContactAbout us
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