The Duct,exhaust,aircraft Gas Turbin, cataloged under National Stock Number 2840-01-673-7520, 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 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-673-7520 |
| Primary Part Number | 269D4112-001 |
| Item Name | Duct,exhaust,aircraft Gas Turbin |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 269D4112-001 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| 269D4112-001 | 5/9 Secondary reference Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
NSN 2840-01-673-7520 is a Duct,exhaust,aircraft Gas Turbin, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-01-673-7520 has 1 manufacturer part number on file: 269D4112-001 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
Key specifications for 269D4112-001: Special Features: DUCT,EXHAUST,AIRCRAFT GAS TURBINE ENGINE; Part Name Assigned by Controlling Agency: EXHAUST DUCT ASSY; End Item Identification: HYD.CHECK VAL. 0 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 2840-01-673-7520 has DEMIL Code Q. 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.