The Duct,exhaust,aircraft Gas Turbin, cataloged under National Stock Number 2840-01-353-0899, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-353-0899 |
| Primary Part Number | 724939 |
| Item Name | Duct,exhaust,aircraft Gas Turbin |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Material Document and Classification | AMS4218 ASSN STD SINGLE MATERIAL RESPONSE DUCT |
| Diameter | 15.880 INCHES NOMINAL IN |
| Engine Section Location | TURBINE |
| Material | ALUMINUM DUCT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 724939 PRIMARY | Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines (USA) |
NSN 2840-01-353-0899 is a Duct,exhaust,aircraft Gas Turbin, manufactured by Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-01-353-0899 has 1 manufacturer part number on file: 724939 (Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines).
2 possible matches (shared part number, not a government interchangeability claim): 6750-01-427-6264, 4720-01-435-3270. Verify interchangeability with system specifications before substitution.
Key specifications for 724939: Criticality Code Justification: AGAV; Material Document and Classification: AMS4218 ASSN STD SINGLE MATERIAL RESPONSE DUCT; Diameter: 15.880 INCHES NOMINAL IN; Overall Length: 7.120 INCHES MINIMUM AND 7.130 INCHES MAXIMUM IN. 5 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 2840-01-353-0899 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.