| Properties |
MIL-PRF-23699F Grade STD |
AeroShell Turbine Oil 500 |
| Oil type |
Synthetic ester |
Synthetic ester |
Kinematic viscosity, mm2/s @ 100°Ñ @ 40°Ñ @-40°Ñ |
4.90 to 5.40 23.0 min 13000 max |
5.17 25.26 8996 |
| Flashpoint, Cleveland Open Cup, °C |
246 min |
256 |
| Pourpoint, °C |
-54 max |
<-54 |
| Total Acidity, mgKOH/g |
1 max |
0.01 |
| Evaporation Lass 6.5 hrs @ 204°C, % m |
10.0 max |
2.52 |
| Foaming |
Must pass |
Passes |
Swelling of Standart Synthetic Rubber SAE-AMS 3217/1 72 hrs @ 70°C, swell % SAE-AMS 3217/4 72 hrs @ 204°C, swell % Standart silicone rubber 96 hrs @ 121°C |
5 to 25 5 to 25 5 to 25 |
Within Limits Within Limits Within Limits |
Thermal Stability/Corrosivity 96 hrs @ 274°C - metal weight change, mg/cm2 - viscosity change, % - Total Acid Number Change, mgKOH/g |
4 max 5 max 6 max |
0.5 2.69 2.03 |
Corrosion & Oxidation Stability 72 hrs @ 175°C 72 hrs @ 204°C 72 hrs @ 218°C |
Must pass Must pass Must pass |
Passes Passes Passes |
| Ryder Gear Test, Relative Rating Hercolube A, % |
102 |
117 |
Bearing Test Rig Type 1? conditions - Overall deposit demerit rating - Viscosity change @ 40°C, % - Total Acid Number change, mgKOH/g - Filter deposits, g |
80.0 max -5 to +30 2 max 3 max |
47 19 1.1 0.4 |
Sonic shear stability - viscosity change @ 40°C, % |
4 max |
NIL |
| Trace metal content |
Must pass |
Passes |
| Sediment, mg/l |
10 max |
2.6 |
| Ash, mg/l |
1 max |
0.05 |