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 is being 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.

How to Find the Right Lubricant
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
What is Rust (and how can you stop its reign of terror)?
Bizrate 2023 Platinum Seven Time Winner

Safety Data Sheet
Product Data Sheet
Application Chart

Due to these products being hazardous, an additional shipping charge of $25.00 is automatically added to smaller "Ground Shipments". If you can order any combination of products that makes your total cart weight over 150 lbs. (which is considered "Freight Shipment"), this additional fee is waived. This can equate to considerable savings on shipping.

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