BAC #: 2197QT

Eastman 2197 Turbo Oil, MIL-PRF-23699-HTS

$36.56

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Description

Eastman Turbo Oil 2197 is a 5 cSt high thermal stability (HTS) synthetic turbine lubricant qualified to MIL-PRF-23699 HTS and SAE AS5780 HPC. It is designed for demanding aircraft turbine engine and accessory applications where high thermal stability, oxidation resistance, hydrolytic stability, cleanliness, and reliable lubrication are critical.

Eastman Turbo Oil 2197 is a widely used high-performance turbine oil with more than 400 million hours of in-flight experience. Its high thermal stability and resistance to oil breakdown make it suitable for turbine engines and accessories operating under demanding thermal conditions.

Key Features

5 cSt synthetic turbine oil for aircraft engine and accessory applications
MIL-PRF-23699 HTS high thermal stability classification
SAE AS5780 HPC high performance capability classification
Excellent high-temperature cleanliness
Outstanding oxidative stability
Outstanding thermal stability
Excellent hydrolytic stability
Helps prevent oil breakdown under demanding operating conditions
Designed for applications subject to high thermal stress
Suitable for turbine engines and turbine accessories where the applicable maintenance documentation specifies an HTS/HPC lubricant

Aircraft and Turbine Applications

Eastman Turbo Oil 2197 is intended for demanding aviation turbine applications where a high thermal stability, 5 cSt synthetic lubricant is specified.

Aircraft gas turbine engines
Turbine engine accessories
Accessory gearboxes and drive systems
Power-generating turbine equipment
Applications requiring MIL-PRF-23699 HTS lubricants
Applications requiring SAE AS5780 HPC turbine oil

Important: Always verify the applicable aircraft, engine, accessory, component maintenance manual, service bulletin, or other approved technical documentation before selecting a turbine oil. Do not substitute turbine oils solely on the basis of viscosity or military specification designation.

Specifications and Classification

Specification / Classification	Description
MIL-PRF-23699	HTS – High Thermal Stability class
SAE AS5780	HPC – High Performance Capability class
Viscosity	5 cSt class turbine oil
Lubricant Type	Synthetic aircraft turbine lubricant

Typical Physical Properties

The following values are typical properties reported by Eastman and are provided for technical reference. They should not be interpreted as shipment specifications or acceptance limits.

Property	Test Method	Typical Value
Density @ 15°C	ASTM D1298	0.9968 kg/L
Kinematic Viscosity @ 100°C	ASTM D445	5.28 mm²/s
Kinematic Viscosity @ 40°C	ASTM D445	26.98 mm²/s
Viscosity @ -40°C after 35 minutes	ASTM D2532	12,539 mm²/s
Pour Point	ASTM D97	-57°C
Flash Point	ASTM D92	262°C
Total Acid Number	SAE ARP5088	0.36 mg KOH/g
Evaporation Loss	ASTM D972	2.30% at 204°C for 6.5 hours

Eastman notes that the physical properties reported in its technical data sheet are typical values from average lots and are not representations that a particular shipment will conform exactly to those values.

Packaging

Package	BAC Part Number	Availability
1 Quart	2197QT	Sold individually
Case of 24 Quarts	Contact BAC for case ordering	24 quarts per case

Why Choose Eastman Turbo Oil 2197?

For turbine engines and accessories operating under significant thermal stress, lubricant stability and cleanliness are critical to reliable operation. Eastman Turbo Oil 2197 combines high thermal stability with oxidative and hydrolytic stability to help resist oil degradation and maintain lubrication performance during demanding service.

Its AS5780 HPC / MIL-PRF-23699 HTS classification makes it particularly relevant when aircraft, engine, or accessory documentation calls for a high-performance, high-thermal-stability turbine lubricant.

Eastman Turbo Oil 2197 vs. Eastman Turbo Oil 2380

Eastman Turbo Oil 2197 and Eastman Turbo Oil 2380 are both 5 cSt synthetic turbine oils, but they serve different specification classes. Turbo Oil 2197 is the HTS/HPC product, while Turbo Oil 2380 is the STD/SPC product. The correct oil must be selected according to the applicable engine or component documentation.

Product	MIL-PRF-23699 Class	SAE AS5780 Class	Viscosity
Eastman Turbo Oil 2197	HTS	HPC	5 cSt
Eastman Turbo Oil 2380	STD	SPC	5 cSt

Frequently Asked Questions

What is Eastman Turbo Oil 2197?

Eastman Turbo Oil 2197 is a 5 cSt synthetic aircraft turbine lubricant designed for demanding engine and accessory applications. It is classified as AS5780 HPC / MIL-PRF-23699 HTS.

What specification does Eastman Turbo Oil 2197 meet?

Eastman identifies Turbo Oil 2197 as an AS5780 HPC / MIL-PRF-23699 HTS class turbine oil.

What viscosity is Eastman Turbo Oil 2197?

Eastman Turbo Oil 2197 is a 5 cSt turbine oil.

What is the difference between Eastman 2197 and 2380?

Both are 5 cSt synthetic turbine oils, but 2197 is the high thermal stability (HTS) / high performance capability (HPC) product, while 2380 is the standard (STD) / standard performance capability (SPC) product. Always use the lubricant specified by the applicable aircraft, engine, or component documentation.

Where is Eastman Turbo Oil 2197 used?

Turbo Oil 2197 is used in aircraft turbine engines and accessories where an AS5780 HPC / MIL-PRF-23699 HTS lubricant is specified.

Does Eastman Turbo Oil 2197 have high-temperature stability?

Yes. High thermal stability is a defining characteristic of Turbo Oil 2197. Eastman identifies high-temperature cleanliness and outstanding oxidative, thermal, and hydrolytic stability among its key attributes.

What size is available from BAC?

BAC currently lists Eastman Turbo Oil 2197 in a 1-quart package under BAC part number 2197QT. Twenty-four quarts make a case.

What is the shelf life of Eastman Turbo Oil 2197?

Shelf life should be verified against the current manufacturer documentation and the specific lot supplied. Refer to the manufacturer’s current shelf-life statement and lot-specific documentation for acceptance requirements.

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