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Eastman Halo 157 55USG Drum *MIL-PRF-32538

Silmid P/N: P1500244
No stock - lead time 17 days
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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.

Technical Information

  • Commodity Code 34039900
  • Country of Origin United States

Product Properties

Pack Size
55USG Drum
Product Colour
Amber
Brand
Eastman
Manufacturer Name
Eastman Chemical Company
Manufacturer Part Number
P3436101
Oil Type
Synthetic

Specifications

NSN Reference
9150-99-464-3014 | 9150-01-682-8707
NATO Code
O-165 | AIR STANDARD ACS-4035

Please Note: Specifications and approvals are subject to change at any time. Users should always consult their AMM or the OEM when selecting products to ensure items have the release needed. Only specifications listed on the order confirmation will be certified on the Silmid CofC.

Product Information

For many years MIL-PRF-23699 approved engine lubricants were employed in helicopter gearboxes, ensuring a common lubricant for both engines and transmission systems. More recently, high-load-carrying oils have been evaluated and found to offer advantages over conventional-load-carrying MIL-PRF-23699 oils.

These higher-load-carrying oils, complying with specification DOD-PRF-85734, were originally intended only for engine applications. The two MIL spec oils are thus of identical viscometric properties. Operators considered that lubrication performance of gearboxes could be enhanced by a higher-viscosity, high-load-carrying lubricant possessing improved corrosion-protective qualities. 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. It is also fully compatible and miscible with other oils approved to specifications MIL-PRF-23699 and MIL-PRF-7808. Multiple tests have been completed in bearing and gearbox rigs and flight evaluations, culminating in the NATO standard (AIR STANDARD ACS 4035) for a 9-cSt advanced helicopter gearbox lubricant.

Features:

  • Excellent load carrying and antiwear performance
  • Excellent shear stability
  • Good corrosion resistance
  • Good elastomer compatibility
  • Greater inter-gear film thickness
  • High temperature stability

Applications:

  • Aviation turbine oil (ATO)
  • Helicopter oil

Specifications:

  • *MIL-PRF-32538
  • *AIR STANDARD ACS-4035

Additional Content

Also Available - Skydrol Hydraulic Fluids
Also Available - Skydrol Hydraulic Fluids
Eastman Brochures
Eastman Brochures
Selecting Your TEO
Selecting Your TEO

Shipping information

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