AeroShell Fluid 41

AeroShell Fluid 41 is a mineral hydraulic oil manufactured to a high level of cleanliness, that provides excellent low temperature fluidity as well as robust anti-wear and corrosion inhibition.

Features and benefits

N

Enhanced system reliability

Protecting against system failure through super cleanliness.
N

Promotes long component life

Extends component life through anti-wear, antioxidant and corrosion-inhibition system, and shear stability performance.
N

Low temperature fluidity

System efficiency through low-temperature performance and high viscosity index.
N

Versatile for Industrial and Automotive Use

Widely used in non‑aviation industrial and automotive applications.

Specifications & approvals

Country / OEM Specification
United States MIL-PRF-5606J
British

DEF STAN 91-48 Grade Superclean

DEF STAN 91-48 Grade Normal

French DCSEA 415/A
NATO Code H-515 (equivalent H-520)
Joint Service Designation OM-15 (equivalent OM-18)
COMAC QPL-CMS-OL-104
Rolls-Royce OMat1064A

 

The TDS and MSDS are in English, but you can find these documents for other countries in the Shell EPC area
.

Applications

AeroShell Fluid 41 is intended as a hydraulic fluid in all modern aircraft applications requiring a mineral hydraulic fluid – commonly in landing gear hydraulic systems. AeroShell Fluid 41 is particularly recommended where use of a “superclean” fluid can contribute to improvements in component reliability and can be used in aircraft systems operating unpressurised between 54°C to 90°C (-65°F to 194°F) and pressurised between -54°C to 135°C (65°F to 275°F).

AeroShell Fluid 41 should be used in systems with synthetic rubber components and must not be used in systems incorporating natural rubber.

AeroShell Fluid 41 is compatible with AeroShell Fluids 31, 61 and LGF. Chlorinated solvents should not be used for cleaning hydraulic components which use AeroShell Fluid 41. The residual solvent contaminates the hydraulic fluid and may lead to corrosion.

Due to its properties, AeroShell Fluid 41 is also used in several industrial applications.

Health, Safety and Environment

  • Health and Safety

    • This product is unlikely to present any significant health or safety hazard when properly used in the recommended application and good standards of personal hygiene are maintained.
    • Avoid contact with skin. Use impervious gloves with used oil. After skin contact, wash immediately with soap and water.
    • Guidance on Health and Safety is available on the appropriate Safety Data Sheet, which can be obtained from https://www.epc.shell.com
      .

    Protect the Environment

    • Take used oil to an authorised collection point. Do not discharge into drains, soil or water.

Additional information

Advice

  • Advice on applications not covered here may be obtained from your Shell representative.

Get in touch with us

We’re here to assist you with any inquiries or support you may need

Typical Physical Characteristics

Properties Method MIL-PRF-5606 J Typical
Oil Type Mineral Mineral
Kinematic viscosity @100°C mm²/s ASTM D445 4.90 minimum 5.3
Kinematic viscosity @40°C mm²/s ASTM D445 13.2 minimum 14.3
Kinematic viscosity @–40°C mm²/s ASTM D445 600 maximum 460
Kinematic viscosity @–54°C mm²/s ASTM D445 2 500 maximum 2 200
Flashpoint °C ASTM D93 82 minimum 95
Pour point °C ASTM D97 –60 maximum –60 maximum
Total acid number mgKOH/g ASTM D664 0.2 maximum 0.02
Evaporation loss 6 hrs @71°C %m ASTM D972 20 maximum 15.4
Water content mg/kg ASTM D6304 100 maximum 75 maximum
Relative density @15.6/15.6°C ASTM D4052 Report 0.873
Colour ASTM D1500 Red Red
Particulate contamination, number of particles per 100 ml in size range 5 to 15 µm FED-STD-791- 3012 8 000 maximum 1 000
Particulate contamination, number of particles per 100 ml in size range 16 to 25 µm FED-STD-791- 3012 1425 maximum 1 000 maximum
Particulate contamination, number of particles per 100 ml in size range 26 to 50 µm FED-STD-791- 3012 253 maximum 150 maximum
Particulate contamination, number of particles per 100 ml in size range 51 to 100 µm FED-STD-791- 3012 45 maximum 20 maximum
Particulate contamination, number of particles per 100 ml in size range over 100 µm FED-STD-791- 3012 8 maximum 5 maximum
Particle Count Number SAE AS4059 5 5 maximum
Copper corrosion ASTM D130 2e maximum 2b
Steel on steel wear, scar diam mm ASTM D4172 1.0 maximum 0.6
Rubber swell, L rubber 168hrs % ASTM D4289 19.0 to 30.0 Passes
Low temperature stability 72 hrs @–54°C FED-STD-791- 3458 Must Pass Passes
Gravimetric analysis mg/100mL ASTM D4898 1.0 maximum 0.2
Foaming tendency ASTM D892 Must Pass Passes
Barium content mg/kg ASTM D5185 10 maximum Nil

 

These characteristics are typical of current production. Whilst future production will conform to Shell’s specification, variations in these characteristics may occur.

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