SAE AS1241 Exxon HyJet IV-A plus

$ 105.00

SKU: HYJETIVA-GL Category: Tag: Brand: .


SAE AS1241 Exxon HyJet IV-A plus Aviation Hydraulic Fluid-GL

Exxon HyJet IV-A plus is a fire-resistant phosphate ester hydraulic fluid designed for use in commercial aircraft. It is the best-performing Type IV fluid and approaches to a great extent many of the performance capabilities of Type V fluids, including high temperature stability, long fluid life, low density, and rust protection.
It is superior to all other Type IV fluids in these respects.
Exxon HyJet IV-A plus meets the specifications of all major aircraft manufacturers and SAE AS1241

To learn more, download the Exxon-Hyjet-IV-A-Plus-Fact-Sheet >>

SAE AS1241 Exxon HyJet IV-A plus Aviation Hydraulic Fluid offers the following key features and benefits:

FeaturesAdvantages and Potential Benefits
Best in high temperature stability among Type IV fluidsLonger fluid life.
Lesser need to replace fluid due to degradation.
Reduced hydraulic system maintenance costs
Lowest density Type IV fluidReduced weight of the hydraulic fluid carried by aircraft.
Reduced aircraft fuel consumption, lower operating costs
Effective rust protectionReduced the risk of equipment damage in the event of major water contamination
Excellent low temperature flow (viscosity) propertiesPrecise hydraulic system control and response even during extended range/polar flights.
Longer equipment life
Excellent deposit controlLonger equipment life.
Reduced maintenance costs
Excellent protection against electro-chemical corrosion (erosion)Protection against servo valve and pump damage
Approved by all major aircraft manufacturersUse as fleet lubricant by airline operators
Fully compatible with all approved phosphate ester hydraulic fluidsFlexibility in use by airline operators

Applications of SAE AS1241 Exxon HyJet IV-A plus Aviation Hydraulic Fluid

Exxon HyJet IV-A plus fire-resistant aviation hydraulic fluid is used in commercial aircraft hydraulic systems where phosphate hydraulic fluids are recommended. It is compatible in all proportions with commercial Type IV and Type V phosphate ester aviation hydraulic fluids.

Exxon HyJet IV-A plus meets or exceeds the following industry and aircraft builder specifications. It is approved against all commercial aircraft manufacturer requirements and is included in their Qualified Products Lists.

Specifications and Approvals of SAE AS1241 Exxon HyJet IV-A plus Aviation Hydraulic Fluid

HyJet IV-A plusMeets Type lV, Low desnsityIs in Qualified products List
SAE Aerospace Standard AS1241CXNot Applicable
Airbus NSA307110NXX
Boeing BMS 3-11P, Type IV, Class 1 and Type V, Grade B and Grade C ÂXX
Boeing (Douglas Division) DMS 2014HXX
British Aerospace (Avro) BAC.M.333CXX
Bombardier/Canadair BAMS 564-003AXX
Gulfstream Aerospace 1159SCH302JXX
Lockheed C-34-1224CXX

Typical Properties – SAE AS1241 Exxon HyJet IV-A plus Aviation Hydraulic Fluid

Test MethodHyJet IV-A plus (1)Limits
Kinematic Viscosity, cStASTM D 445
at -53.9ºC (-65ºF)13202000 max
at -26.1ºC (-15ºF)130135 max
at 37.8ºC (100ºF)10.610.0 -11.0
at 98.9ºC (210ºF)3.63.35 – 3.75
at 127.6ºC (260ºF)2.61.5 min
Viscosity IndexASTM D 2270280
Shear Stability, % Viscosity Drop at 40ºCASTM D 562122
Pour Point, ºC (ºF)ASTM D 97‹-62 (-80)-62 (-80) max
Specific Gravity at 25ºC/25ºC (77ºF/77ºF)ASTM D 40520.9960.990 -1.002
Density at 15.6ºC (60ºF), g/mL (lb/gal)ASTM D 40520.999 (8.35)
Acid Number, mg KOH/gASTM D 9740.040.1 max
Water, Karl Fischer, mass %ASTM D 63040.10.2 max
Flash Point, ºC (ºF)ASTM D 92176 (349)160 (320) min
Fire Point, ºC (ºF)ASTM D 92188 (370)177 (350) min
Autoignition Point, ºC (ºF)ASTM D 2155›427 (800)400 (752) min
Foaming Tendency/Stability, mL foam/sec to collapseASTM D 892
Sequence I27/15250/100 max
Sequence Il23/13150/50 max
Sequence Ill28/16450/250 max
Particle Count, NAS 1638 ClassAuto Counter47 max
Chemical Elements, ppm
Calcium103120 max
Potassium3848 max
Chlorine1050 max
Sodium115 max
Sulfur224350 max
Four-Ball Wear, Scar diameter at 75ºC/600rpm/1hour, mmModified ASTM D 4172
4 kg0.220.45 max
10 kg0.330.50 max
40 kg0.730.55 – 0.85
Electrical Conductivity at 20ºC, microSiemens/cm1.40.5 min
Bulk Modulus, Isothermal secant at 100ºF/3000 psi, psi210,000
Thermal Conductivity at 40ºC, cal/sec/cm2/ºC (Btu/hr/ft2/ºF)33×10^-5 (0.0799)
Coefficient of Thermal Expansion, 25 to 100ºC, per ºC (per ºF)0.00086 (0.00048)
Specific Heat Capacity at 40 ºC, cal/g/ºC (same as Btu/lb/ºF)0.41

(1) Values may vary within modest ranges

Additional information

Weight9 lbs


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