The Shroud Segment,stage 4 Turbine, cataloged under National Stock Number 2840-01-147-0563, 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 Union Machine Co of Lynn, Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-147-0563 |
| Primary Part Number | 4014T04G09 |
| Item Name | Shroud Segment,stage 4 Turbine |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Union Machine Co of Lynn, Inc |
| Status | ACTIVE |
| Overall Diameter | 19.640 INCHES MINIMUM AND 19.644 INCHES MAXIMUM IN |
| Criticality Code Justification | AGAV |
| Material | STEEL |
| 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 |
|---|---|
| 4014T04G09 | Union Machine Co of Lynn, Inc (USA) |
| 4014T04G09 | Metro Machine Works Inc (USA) |
| 4014T04G09 | General Electric Company Dba Ge Structured Services Div General Electric Structured Services, Lp (USA) |
| 4014T04G09 | Ferrotherm, Llc Div Ferrotherm (USA) |
| Reference | Meaning |
|---|---|
| 4014T04G09 | 5/1 Secondary reference Twigg Corp |
| 4014T04G09 | 5/1 Secondary reference Steel Tool & Engineering Co |
| 4014T04G09 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2840-01-147-0563 is a Shroud Segment,stage 4 Turbine, manufactured by Union Machine Co of Lynn, Inc, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-01-147-0563 has 4 manufacturer part numbers on file: 4014T04G09 (Union Machine Co of Lynn, Inc), 4014T04G09 (Metro Machine Works Inc), 4014T04G09 (General Electric Company Dba Ge Structured Services Div General Electric Structured Services, Lp), 4014T04G09 (Ferrotherm, Llc Div Ferrotherm).
Key specifications for 4014T04G09: Overall Diameter: 19.640 INCHES MINIMUM AND 19.644 INCHES MAXIMUM IN; Criticality Code Justification: AGAV; Overall Length: 0.904 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN; Special Features: WAS CASE,TURBINE ROTOR,TURBINE ENGINE; MATERIAL DOCUMENT AND CLASSIFICATION: AMS5536 ASSN STD SINGLE MATERIAL; ENGINE SECTION LOCATION: TURBINE. 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 2840-01-147-0563 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.