The Shield,heat,aircraft Gas Turbine, cataloged under National Stock Number 2840-00-816-8634, 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 1 specification, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-00-816-8634 |
| Primary Part Number | 434994 |
| Item Name | Shield,heat,aircraft Gas Turbine |
| 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 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 434994 | Electro-Methods, L.p. (USA) |
| 434994 | Rtx Corporation Div Pratt & Whitney (USA) |
| 434994 | Dover Tool of Connecticut, Llc Div Na (USA) |
| 434994 | Demusz Mfg. Co., Inc. (USA) |
| 434994 | Hanwha Aerospace Usa Llc Div Edac Nd, Inc. (USA) |
| 434994 | Enjet Aero Bloomfield, Llc (USA) |
| 434994 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 434994 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 434994 | 5/9 Secondary reference Valcom Manufacturing Group Inc |
| 434994 | 5/9 Secondary reference Quality Aviation, Inc Dba Quality Aviation Inc |
NSN 2840-00-816-8634 is a Shield,heat,aircraft Gas Turbine, 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 2840-00-816-8634 has 7 manufacturer part numbers on file: 434994 (Electro-Methods, L.p.), 434994 (Rtx Corporation Div Pratt & Whitney), 434994 (Dover Tool of Connecticut, Llc Div Na), 434994 (Demusz Mfg. Co., Inc.), 434994 (Hanwha Aerospace Usa Llc Div Edac Nd, Inc.) and 2 more.
1 possible match (shared part number, not a government interchangeability claim): 4730-01-256-7147. Verify interchangeability with system specifications before substitution.
Key specifications for 434994: Criticality Code Justification: AGAV; Special Features: FOR COMPRESSOR FRONT BEARING; End Item Identification: ACFT ENG TF-33. 1 specification is 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 2840-00-816-8634 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.