The Oil to Fuel Heater, cataloged under National Stock Number 2915-01-491-8583, is classified within Federal Supply Class 2915 (Engine Fuel System Components, Aircraft and Missile Prime Movers) of the Engine Accessories group. The manufacturer of record is Meggitt Troy Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2915-01-491-8583 |
| Primary Part Number | 10544G |
| Item Name | Oil to Fuel Heater |
| FSC / FSG | 2915 / 29 — Engine Fuel System Components, Aircraft and Missile Prime Movers |
| Manufacturer | Meggitt Troy Inc |
| Status | ACTIVE |
| General Characteristics Item Description | ITEM IS A HEAT EXCHANGER WHICH USES ENGINE OIL TO HEAT THE FUEL FOR PT6 TURBINE ENGINES BEFORE THE FUEL ENTERS THE COMBUSTION SYSTEM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 10544G PRIMARY | Meggitt Troy Inc (USA) |
| PWC 3049386-02 | Meggitt Troy Inc (USA) |
| Reference | Meaning |
|---|---|
| 10544G | 3/9 Design control — primary reference Stewart Warner South Wind Corporation |
| PWC 3049386-02 | 5/9 Secondary reference Stewart Warner South Wind Corporation |
| 3032708 | 5/9 Secondary reference Meggitt Troy Inc |
| 10544E | 5/9 Secondary reference Meggitt Troy Inc |
NSN 2915-01-491-8583 is a Oil to Fuel Heater, manufactured by Meggitt Troy Inc, classified under FSC 2915, Engine Fuel System Components, Aircraft and Missile Prime Movers. Status: active.
NSN 2915-01-491-8583 has 2 manufacturer part numbers on file: 10544G (Meggitt Troy Inc), PWC 3049386-02 (Meggitt Troy Inc).
Key specifications for 10544G: General Characteristics Item Description: ITEM IS A HEAT EXCHANGER WHICH USES ENGINE OIL TO HEAT THE FUEL FOR PT6 TURBINE ENGINES BEFORE THE FUEL ENTERS THE COMBUSTION SYSTEM. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 2915-01-491-8583 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.