The Seal,air,aircraft Gas Turbine En, cataloged under National Stock Number 2840-01-491-2704, 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 Kirkhill, Inc. Dba Ta Aerospace Co Div Kirkhill Inc, Sfs Division. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Seal,air,aircraft Gas Turbine En |
| FSC / FSG | 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components (FSG 28) |
| Manufacturers | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (CAGE 76823); Kirkhill, Inc. Dba Ta Aerospace Co Div Kirkhill Inc, Sfs Division (CAGE 50744); The Boeing Company Div Defense (CAGE 76301) |
| Parameter | Value |
|---|---|
| NSN | 2840-01-491-2704 |
| Primary Part Number | SF26-1043-107 |
| Item Name | Seal,air,aircraft Gas Turbine En |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Kirkhill, Inc. Dba Ta Aerospace Co Div Kirkhill Inc, Sfs Division |
| 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 | F |
| Part Number | Manufacturer |
|---|---|
| 74B508010-107 | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| SF26-1043-107 PRIMARY | Kirkhill, Inc. Dba Ta Aerospace Co Div Kirkhill Inc, Sfs Division (USA) |
| 74B508010-107 | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 74B508010 | D/9 Drawing number reference only The Boeing Company Div Defense |
NSN 2840-01-491-2704 is a Seal,air,aircraft Gas Turbine En, manufactured by Kirkhill, Inc. Dba Ta Aerospace Co Div Kirkhill Inc, Sfs Division, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-01-491-2704 has 3 manufacturer part numbers on file: 74B508010-107 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems), SF26-1043-107 (Kirkhill, Inc. Dba Ta Aerospace Co Div Kirkhill Inc, Sfs Division), 74B508010-107 (The Boeing Company Div Defense).
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 2840-01-491-2704 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.