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Eastman Halo 157 55USG Drum *MIL-PRF-32538 *AIR STANDARD ACS-4035

Eastman Halo 157 55USG Drum *MIL-PRF-32538 *AIR STANDARD ACS-4035
Eastman™ HALO 157 is a clear amber colored fluid with a faintly aromatic odor reminiscent of turbine engine oils. It is based on selected polyol esters, the inherent characteristics of which are enhanced by additives.  read more

Product Information


An advanced helicopter transmission oil with excellent load-carrying and antiwear performance, it is purpose designed to offer maximum protection to helicopter transmission systems under extreme operating conditions.

Eastman Halo 157™ is fully compatible and miscible with other oils approved to specifications MIL-PRF-23699 and MIL-PRF-7808.


  • Gearbox
  • Helicopter
  • Transmission

Key Attributes

  • A purpose-designed lubricant with a viscosity of 9 cSt @ 100°C and 12,700 cSt @ -32°C
  • Excellent load-carrying and antiwear performance
  • Excellent shear stability
  • Good corrosion resistance
  • Good elastomer compatibility
  • Greater inter-gear film thickness
  • High-temperature stability


Specifications and Information

Technical Information

No stock - lead time 17 days
Product Code
Commodity Code
Country Of Origin
United States

Document Downloads

Sil-Mid Limited DO NOT GUARANTEE that the information in these documents is the most up to date information available from the manufacturer, there are times when updated information is released and we are not made aware immediately.

Delivery information

Orders over £100 placed online will now qualify for FREE UK Mainland delivery*

Orders under £100 placed online for UK Mainland delivery is £8.95*

**Orders requiring Pre 10.00am Next Day delivery has also been lowered from £35.00 to £21.00, orders placed through the office will incur additional charges.** 

International delivery (door to door delivery) is available for selected countries worldwide. Shipping will be automatically calculated based on the weight, location and hazardous nature of the goods. Customers can also choose ex works to arrange their own collection.

Please refer to our delivery page for more information.