The Seal,air,aircraft Gas Turbine En, cataloged under National Stock Number 2840-00-939-3453, 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 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2840-00-939-3453 |
| Primary Part Number | 503569 |
| Item Name | Seal,air,aircraft Gas Turbine En |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Diameter | 3.7409 INCHES MINIMUM AND 3.7422 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| 503569 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 503569 | The United Tool & Die Company (USA) |
| Reference | Meaning |
|---|---|
| 503569 | 5/9 Secondary reference Drt Aerospace, Llc |
| 503569 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 503569 | 5/9 Secondary reference Electro-Methods, L.p. |
| 503569 | 5/9 Secondary reference American Tool and Machine Corp |
NSN 2840-00-939-3453 is a Seal,air,aircraft Gas Turbine En, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-00-939-3453 has 2 manufacturer part numbers on file: 503569 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 503569 (The United Tool & Die Company).
Key specifications for 503569: Criticality Code Justification: AGAV; Diameter: 3.7409 INCHES MINIMUM AND 3.7422 INCHES MAXIMUM IN; Overall Length: 0.977 INCHES MINIMUM AND 0.979 INCHES MAXIMUM IN; End Item Identification: ACFT ENG TF30. 3 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 2840-00-939-3453 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.