The Modification Kit,engine, cataloged under National Stock Number 2840-01-039-5705, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Modification Kit,engine |
| FSC / FSG | 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components (FSG 28) |
| Parameter | Value |
|---|---|
| NSN | 2840-01-039-5705 |
| Item Name | Modification Kit,engine |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Status | ACTIVE |
| Component Quantity | 40 |
| Document Type | INDUSTRIAL SPECIFICATION |
| End Item Source | 97499 |
| Component Document Page Number | 1 |
| Document Identification | 206-704-112 |
| Component Document Origin | INDUSTRIAL |
| End Item Name | HELICOPTER,OBSERVATION |
| Document Source | 97499 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Reference | Meaning |
|---|---|
| 1560-OH58-191 | 3/2 Design control — primary reference U.S. Government activity |
| 206-704-112-1 | 5/9 Secondary reference U.S. Government activity |
NSN 2840-01-039-5705 is a Modification Kit,engine, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
Key specifications for 2840-01-039-5705: Component Quantity: 40; Document Type: INDUSTRIAL SPECIFICATION; End Item Source: 97499; Component Document Page Number: 1. 8 specifications are 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 2840-01-039-5705 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.