AeroShell Grease 33

Maximise airframe reliability with Aeroshell Grease 33, a lithium complex formulation that delivers superior performance from -73°C to +121°C, ensuring robust protection.

Features and benefits

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Universal airframe grease

Engineered for use in commercial and military aircraft, ensuring broad compatibility across airframes.
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Wide temperature range

Delivers reliable lubrication across a wide temperature range, from -73°C to +121°C, making it ideal for extreme conditions.
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Advanced corrosion protection

Inhibits corrosion and oxidation, extending the lifespan of critical components in harsh environments.
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Outstanding mechanical stability

Highly resistant to softening, which helps keep it in place, working harder for longer.

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Water resistance and stability

Provides superior resistance to water washout and mechanical stability, maintaining effectiveness in challenging conditions.
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Approved for global aviation standards

Meets or exceeds specifications for major commercial and military aircraft, making it a trusted choice worldwide.

Specifications & approvals

Country / OEM Specification
United States MIL-PRF-23827C (Type I)
SAE AMS3052
NATO Code G-354
Airbus

AIMS 09-06-002

Consumable Material List (CML) Reference 03GBC1, 03GBD1

Boeing BMS 3-33C
COMAC QPL-CMS-OL-302

 

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

AeroShell Grease 33 is approved to BMS 3-33C and offers the improved performance properties required by this specification.

AeroShell Grease 33 can be used for routine lubrication in applications where MIL-PRF-23827C is specified on aircraft manufactured by Airbus, Boeing, Embraer, Fokker, Gulfstream and other legacy OEMs like McDonnell Douglas, BAe Regional Aircraft (except for wheel bearings, applications above 121°C and sliding applications requiring molybdenum disulphide).

AeroShell Grease 33 can also be used in some applications on aircraft which require use of MIL-G-21164. Other applications on Boeing aircraft which require use of MIL-G-21164 and other greases are being reviewed and in due course Boeing will issue details of the full range of applications. For the current status, refer to the latest issue of Boeing Service Letter “BMS 3-33C General Purpose Aircraft Grease”.

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 grease. 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 lubricant 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 BMS 3-33C Typical
Oil type Synthetic Hydrocarbon / Ester Synthetic Hydrocarbon / Ester
Colour Blue-green Green
Thickener type Lithium Complex Lithium Complex
Base Oil viscosity @-40°C mm²/s ASTM D445 1 840
Base Oil viscosity @40°C mm²/s ASTM D445 14.2
Base Oil viscosity @100°C mm²/s ASTM D445 3.4
Useful operating temperature range °C -73 to +121 -73 to +121
Dropping point °C ASTM D556 205 min 227
Worked penetration @25°C ASTM D217 265 to 315 297
Bomb Oxidation pressure @99°C kPa (psi) drop from 758 kPa (110 psi), 100 hrs ASTM D942 70 (10) max 3.5 (0.5)
Bomb Oxidation pressure @99°C kPa (psi) drop from 758 kPa (110 psi), 500 hrs ASTM D942 105 (15) max 34 (5)
Oil separation 30 hrs @100°C %m ASTM D6184 8 max 2
Water Washout @79°C %m ASTM D1264 7.5 max <6
Evaporation loss 500 hrs @121°C %m ASTM D2595 10 max <10
Anti-friction bearing performance @121°C hrs ASTM D3336 1000 min >1 200
Load Carrying Capability LWI @27°C kg ASTM D2596 60 min >60
Copper corrosion 24 hrs @100°C ASTM D4048 1B max Passes

 

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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