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Phillips 66 X/C 5606A Aviation Hydraulic Fluid | 1 Gallon Bottle

Phillips 66 X/C 5606A Aviation Hydraulic Fluid | 1 Gallon Bottle

4 Stars Write a review 3 product reviews

8.35 LBS
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Product Description

Phillips 66 X/C 5606A Aviation Hydraulic Fluid, 1 Gal. bottle, 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)

Product Reviews

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  1. 4 Star Review Phillips 66 X/C 5606A Aviation Hydaulic Fluid

    Posted by on

    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!

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