FSC Group 28: Engines, Turbines, and Components
- 2805: Gasoline Reciprocating Engines, Except Aircraft; and Components
- 2810: Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components
- 2815: Diesel Engines and Components
- 2820: Steam Engines, Reciprocating; and Components
- 2825: Steam Turbines and Components
- 2830: Water Turbines and Water Wheels; and Components
- 2835: Gas Turbines and Jet Engines; Non-Aircraft Prime Mover, Aircraft Non-Prime Mover, and Components
- 2840: Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
- 2845: Rocket Engines and Components
- 2850: Gasoline Rotary Engines and Components
- 2895: Miscellaneous Engines and Components
- 28GP: Engines, Turbines, and Components -- General