AeroShell Fluid 4 Aviation Hydraulic Fluid

AeroShell Fluid 4 Aviation Hydraulic Fluid

0.00 LBS

Aeroshell Fluid 4 Aviation Hydraulic Oil Meeting MIL-H-5606A Specification

Aeroshell Fluid 4 has been discontinued and replaced by Aeroshell Fluid 41

AeroShell Fluid 4 is a mineral-based hydraulic oil with low temperature characteristics that is capable of operating over a wide range of temperatures. This fluid is oxidation inhibited and contains a special anti-wear additive. It is dyed red for identification and leak detection purposes. It also has the following benefits: 

  • Superior low temperature properties 
  • Compatibility with synthetic rubber components 
  • Dyed red for easy identification 
  • Good anti-wear properties 


  • Aircraft applications where a MIL-L-5606A fluid is specified or recommended 
  • Hydraulic oil systems, particularly those that are subject to a wide variation in ambient operating temperatures 
  • Winter service for bucket trucks and other portable equipment subject to severe low temperature operation 
  • Should not be used in aviation applications that call for a MIL-H-5606G type fluid 


  • MIL-H-5606A* (obsolete) 
  • DEF STAN 91-048 Grade Normal* 

* AeroShell grade meets the requirements of the listed specification but is not necessarily fully approved to that specification. 

3 Reviews | Write a Review.

  • 5
    Exactly what I needed and works great.

    Posted by Peter Behlen on Mar 19 2021

    I couldn't get this locally, so I ordered it online. Shipping was quick and item was packed well.

  • 5
    An easy purchase

    Posted by Remington Circle on Nov 03 2020

    Great products, easy purchase and quick shipping. Just what we look for.

  • 5
    AeroShell Fluid 4

    Posted by Larry on Nov 02 2020

    excellent hydraulic oil. great freight prices, shipped fast.

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The Power of Fluids: The Unique Properties of Hydraulic Oils
Quality Base Oils: The Foundation of a Great Lubricant
Understanding Types of Lubricants: Base Oil Groups
What is MIL-H-5606?
The Ins and Outs of Oil Storage: What is the Shelf Life of Oil?
Why Lubricant Additives are Important
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