Typical Physical Characteristics
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PROPERTIES |
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MIL-PRF-23699F |
TYPICAL |
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Grade STD |
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Oil Type |
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Synthetic ester |
Synthetic ester |
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Kinematic Viscosity |
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mm2⁄S |
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@ 100°C |
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4.90 to 5.40 |
5.17 |
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@ 40°C |
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23.0 min |
25.26 |
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@ –40°C |
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13000 max |
8996 |
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Flashpoint, Cleveland |
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Open Cup |
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°C |
246 min |
256 |
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Pourpoint |
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°C |
–54 max |
<–54 |
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Total Acidity |
mgKOH/g |
1 max |
0.01 |
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Evaporation Loss 6.5 hrs |
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@ 204°C |
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% m |
10.0 max |
2.52 |
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Foaming |
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Must pass |
Passes |
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Swelling of Standard |
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Synthetic Rubber |
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SAE-AMS 3217/1, |
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72 hrs @ 70°C |
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swell % |
5 to 25 |
Within Limits |
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SAE-AMS 3217/4, |
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72 hrs @ 204°C |
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swell % |
5 to 25 |
Within Limits |
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standard silicone rubber |
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96 hrs @ 121°C |
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5 to 25 |
Within Limits |
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Thermal Stability/Corrosivity |
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96 hrs @ 274°C |
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– metal weight change |
mg/cm2 |
4 max |
0.5 |
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– viscosity change |
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% |
5 max |
2.69 |
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– Total Acid Number Change mgKOH/g |
6 max |
2.03 |
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Corrosion & Oxidation Stability |
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72 hrs @ 175°C |
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Must pass |
Passes |
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72 hrs @ 204°C |
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Must pass |
Passes |
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72 hrs @ 218°C |
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Must pass |
Passes |
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Ryder Gear Test, Relative Rating |
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Hercolube A |
% |
102 |
117 |
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Bearing Test Rig |
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Type 11⁄2 conditions |
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– Overall deposit demerit rating |
80.0 max |
47 |
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– viscosity change @ 40°C |
% |
–5 to +30 |
19 |
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– Total Acid Number change |
mgKOH/g |
2 max |
1.1 |
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– filter deposits |
g |
3 max |
0.4 |
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Sonic shear stability |
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– viscosity change @ 40°C |
% |
4 max |
NIL |
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Trace metal content |
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Must pass |
Passes |
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Sediment |
mg/l |
10 max |
2.6 |
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Ash |
mg/l |
1 max |
0.05 |
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Specifications
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U.S. |
Approved MIL – PRF – 23699F |
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Grade STD |
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British |
Approved DEF STAN 91-101 |
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Grade OX-27 |
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French |
Equivalent DCSEA 299/A |
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Russian |
– |
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NATO Code |
O -156 |
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Joint Service Designation |
OX – 27 |
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Pratt & Whitney |
Approved 521C Type II |
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General Electric |
Approved D-50 TF 1 |
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Allison |
Approved EMS – 53 (Obsolete) |
Equipment Manufacturer’s Approvals
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Honeywell |
TFE 731, TPE 331, GTCP 30, 36, 85, |
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331, 660 and 700 series APUs. |
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ALF 502, LF507, LTS101, LTP101, T53, |
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T55, AL5512 |
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Allison (Rolls-Royce) |
250 Series, 501 D13, T56, |
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GMA 2100, GMA 3007 |
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BMW-Rolls Royce |
BR710, BR715 |
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CFM International |
CFM 56 cleared for flight evaluation |
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GE |
GE 90, CF6, CT58, CF700, CJ610, |
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CJ805, CF34, CT7, CT64 |
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IAE |
V2500 Series, all marques |
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Motorlet |
M601D, E and Z |
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Pratt & Whitney |
JT3, JT4, JT8, JT9, JT12, PW4000, |
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PW6000 |
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Pratt & Whitney |
JT15, PT6A, PT6T, ST6, PW100, |
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Canada |
PW200, PW300, PW500 |
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Rolls-Royce |
RB211-22B, -524, -535, Trent, Tay, |
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Gnome, Spey, RB183, Adour, M45H, |
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Viper (Series MK 301, 521, 522, 526, |
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535, 540, 601, 623 and 632) |
AeroShell Turbine Oil 500 is a 5 mm2/s synthetic hindered ester oil. It is also approved for use in the industrial and marine versions of the Rolls Royce Trent, Avon, Allison 501K and 570K, Honeywell TF35, Pratt & Whitney GG3/FT3, GG4/FT4, GG12/FT12, all General Electric LM Series of units, Turbomeca industrial engines and certain Solar gas turbine engines.