Mobil Aero HF
Mineral aircraft hydraulic fluid to MIL-PRF-5606, NATO code H-515
MIL-H-5606A
| Property | Typical value | Method |
|---|---|---|
| Oil type | Mineral | |
| Kinematic viscosity @100°Cmm2/s | 5.30 | ASTM D445 |
| Kinematic viscosity @40°Cmm2/s | 14.3 | ASTM D445 |
| Kinematic viscosity @–40°Cmm2/s | 460 | ASTM D445 |
| Kinematic viscosity @–54°Cmm2/s | 2 200 | ASTM D445 |
| Flash point°C | 95 | ASTM D93 |
| Pour point°C | –60 maximum | ASTM D97 |
| Total acid numbermgKOH/g | 0.02 | ASTM D664 |
| Evaporation loss 6 hrs @71°C%m | 15.4 | ASTM D972 |
| Water contentmg/kg | 75 maximum | ASTM D6304 |
| Relative density @15.6/15 | 0.873 | ASTM D4052 |
| Colour | Red | ASTM D1500 |
| Particulate contamination5 to 15 µm | 1 000 | FED-STD-791- |
| Particulate contamination16 to 25 µm | 1 000 maximum | FED-STD-791- |
| Particulate contamination26 to 50 µm | 150 maximum | FED-STD-791- |
| Particulate contamination51 to 100 | 20 maximum | FED-STD-791- |
| Particulate contaminationover 100 | 5 maximum | FED-STD-791- |
| Particle countNumber | 5 maximum | SAE AS4059 |
| Copper corrosion | 2b | ASTM D130 |
| Steel on steel wear, scar diametermm | 0.6 | ASTM D4172 |
| Rubber swell, L Rubber 168hrs% | Passes | ASTM D4289 |
| Low temperature stability 72 @–54°C | Passes | FED-STD-791- |
| Gravimetric analysismg/100mL | 0.2 | ASTM D4898 |
| Foaming tendency | Passes | ASTM D892 |
| Barium contentmg/kg | Nil | ASTM D5185 |
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AeroShell Fluid 41 is a mineral hydraulic oil manufactured to a very high level of cleanliness, and possesses improved fluid properties. AeroShell Fluid 41 contains additives which provide excellent low temperature fluidity as well as exceptional anti-wear, oxidation - corrosion inhibition and shear stability. In addition metal de-activators and foam inhibitors are included in this high viscosity index fluid to enhance performance in hydraulic applications. AeroShell Fluid 41 is capable of wide temperature range operation. AeroShell Fluid 41 is dyed red.
DEF STAN 91-48 — aviation hydraulic fluid
The UK Defence Standard for an aviation hydraulic fluid; "Superclean" denotes its highest particulate-cleanliness grade.
COMAC QPL-CMS-OL-104 — qualified products list
An entry on a Qualified Products List: the product has been checked against the CMS-OL-104 requirement and admitted for use.
NATO Code H-515 — engine oil
The NATO supply code for a military engine oil, used in logistics to identify the product across allied forces.
NATO Code H-520 (normal grade) — engine oil
The "normal grade" NATO supply code equivalent to H-515, for the same family of military engine oils.
Super-clean mineral aviation hydraulic fluid
UK MOD Joint Service Designation code for a super-clean, red-dyed mineral hydraulic fluid used in aviation.Source
MIL-PRF-5606J — aviation hydraulic fluid
The US military specification for the red mineral hydraulic fluid used in aviation and military ground equipment, serviceable from −54 °C.