The Support,seal,aircraft Gas Turbin, cataloged under National Stock Number 2840-01-539-2273, 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 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-539-2273 |
| Primary Part Number | 4088040 |
| Item Name | Support,seal,aircraft Gas Turbin |
| 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 |
| Material Document and Classification | PWA 1174 MFR REF ALL MATERIAL RESPONSES |
| Material | NICKEL ALLOY |
| 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 |
|---|---|
| 4088040 | Rtx Corporation Div Pratt & Whitney (USA) |
| 4088040 | Hanwha Aerospace Co., Ltd Div Ps Business Unit (KOR) |
| 4088040 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 2840PL1850681 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| KDS 2840-1150 | 5/1 Secondary reference Defense Acquisition Program Administration, R.o.k |
NSN 2840-01-539-2273 is a Support,seal,aircraft Gas Turbin, 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 2840-01-539-2273 has 3 manufacturer part numbers on file: 4088040 (Rtx Corporation Div Pratt & Whitney), 4088040 (Hanwha Aerospace Co., Ltd Div Ps Business Unit), 4088040 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 4088040: Criticality Code Justification: AGAV; Material Document and Classification: PWA 1174 MFR REF ALL MATERIAL RESPONSES; Part Name Assigned by Controlling Agency: SUPPORT-AIR SEALING RING,1ST STAGE; End Item Identification: F100-PW-229 AIRCRAFT ENGINE. 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 2840-01-539-2273 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.