What is MIL PRF 87257?
MIL-PRF-87257 describes the characteristics and provides the requirements for a synthetic hydrocarbon base hydraulic fluid for use in the -54°C to +200°C temperature range in aircraft and missile hydraulic systems. MIL-PRF-87257 hydraulic fluid is identified by NATO Code No. H-538.
What is MIL PRF 83282?
AeroSyn 83282 is a red-colored synthetic, fire-resistant hydraulic fluid. This “Super Clean” synthetic hydraulic fluid uses state-of-the-art additive technology to provide corrosion inhibition, oxidative stability and anti-wear protection.
What color is MIL PRF 87257?

red-colored
SenSyn 87257 is a red-colored synthetic based fluid for use in hydraulic systems which require reliable operation in an extreme wide temperature range as well as performance outside the capability of traditional MIL-PRF-5606 and MIL-PRF-83282 fluids.
What does MIL H 5606 mean?
MIL stands for Military, H for hydraulic fluid, and 5606 designates oil’s the performance properties. The specifications for this oil are as follows: it has an iso viscosity level of 15 and is thin compared to most oils so it can flow at a colder temperature.
Is skydrol corrosive?
The phosphate ester hydraulic fluids (Skydrol and Hyjet) used on civil aircraft can undergo a hydrolytic decomposition at temperatures above about 300F (150C) in the presence of moisture, producing phosphoric acid that can cause corrosion and hydrogen absorption in titanium alloys.

How toxic is Skydrol?
Skydrol fluids are extremely irritating to human tissue. Gloves and goggles are recommended safety equipment when servicing Skydrol systems. If the fluid gets on the skin it creates an itchy, red rash with a persistent burning sensation.
Is Skydrol carcinogenic?
4.2 Most important symptoms and effects, both acute and delayed: Eye may become red, tear, and become painful. The product contains a small amount of sensitizing substance which may provoke an allergic reaction among sensitive individuals. Limited evidence of a carcinogenic effect.
What is Skydrol made of?
Skydrol is made of a fire-resistant phosphate ester base stock, with a number of oil additives dissolved into it to inhibit corrosion and prevent erosion damage to servo valves. It also includes a purple or green dye to ease identification.