Phillips 66 X/C 5606A Aviation Hydraulic Fluid

Phillips 66 X/C 5606A Aviation Hydraulic Fluid
Phillips 66 Aviation

0.00 LBS

Phillips 66 X/C 5606A Aviation Hydraulic Fluid Meeting MIL-H-5606A Specifications

Phillips 66 X/C 5606A Aviation Hydraulic Fluid, is a mineral oil-based, high viscosity index, ashless (zinc-free) antiwear hydraulic fluid designed to meet the severe demands of aerospace and industrial applications. This product has excellent oxidation resistance and outstanding low-temperature properties for use over a wide temperature range. It provides excellent wear protection for hydraulic pumps and motors, protect hydraulic system components against rust and corrosion, and is resistant to excessive foam buildup that can cause poor or sluggish hydraulic system response. It also has the following benefits:

  • Very high viscosity index for use over a wide temperature range
  • Outstanding low-temperature properties
  • Excellent wear protection
  • Resists deposit formation and viscosity increase due to oxidation
  • Protects against rust and corrosion
  • Good foam resistance
  • Does not contain zinc or other heavy metals



Phillips 66 X/C 5606A Aviation Hydraulic Fluid is recommended for use in non-pressurized systems operating between -54C and 90C (-65F to 194F), and in pressurized systems operating between -54C and 135C (-65F to 275F) at pressures up to 3,000 psi.

  • Aircraft and missile control systems, autopilots and shock absorbers
  • Auto wreckers, boom trucks and electrical service equipment (cherry pickers) where all-weather performance is required
  • Industrial robotics

NOTE: Do not use these fluids in hydraulic systems with natural rubber elastomers.

Meets the requirements of U.S. Military Specification MIL-PRF-5606H (supercedes MIL-O-5606, AN-O-336, AN-VV-O-336 and AAF-3580) and U.S. Military Specification MIL-H-5606A (obsolete)

5 Reviews | Write a Review.

  • 5
    Great product and service!

    Posted by Mike Underwood on May 25 2018

    PSC has the best price on this product. It's easy to find on the site and it shipped to me within a few days with no issues. I'll be a return customer.

  • 5
    Great Buy!!

    Posted by James on Nov 06 2017

    This is a great Buy when your buying less than the drum. Thanks PSC for making the choice so easy.

  • 4
    Phillips 66 X/C 5606A Aviation Hydaulic Fluid

    Posted by Derek on May 08 2017

    I use this in my boat as an alternative to the very high priced steering oil. Meets all the specs for less than half the price. In fact, I prefer this product, because of it's red color. That makes leak detection much quicker. My only complaint, and the reason it didn't get 5 stars, is the metal container. I would prefer something like a bleach bottle that is easier to pour. Highly recommended!

  • 5
    Great stuff!

    Posted by None on Oct 21 2016

    Works great in my Fisher HT plow. Get some!

  • 4
    Finally Found it

    Posted by N573BN on Jun 10 2016

    I have been searching everywhere for this product. Thank You PSC for selling it by the gallon

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.

Sunoco Race Fuels is offering a Free Drum Pump with the purchase of a 54 Gallon Drum of Sunoco E85-R 99 Octane Race Fuel.
To add the free drum pump, first add the '54 Gallon Drum' to the cart, then click the blue 'Add FREE Drum Pump' button.

By entering your amount in the “Quantity” field, the price will automatically reflect the bulk discount below.