The Core Assembly,fluid Cooler, cataloged under National Stock Number 4420-01-209-0283, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is General Electric Co Apparatus and Engineering Service Organization Div. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Core Assembly,fluid Cooler |
| FSC / FSG | 4420 — Heat Exchangers and Steam Condensers (FSG 44) |
| Manufacturers | General Electric Co Apparatus and Engineering Service Organization Div (CAGE 4T674); General Electric Co Direct Current Motor and Generator Dept (CAGE 01288) |
| Parameter | Value |
|---|---|
| NSN | 4420-01-209-0283 |
| Primary Part Number | 566D187 PIECE 49 |
| Item Name | Core Assembly,fluid Cooler |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | General Electric Co Apparatus and Engineering Service Organization Div |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 566D187 PIECE 49 PRIMARY | General Electric Co Apparatus and Engineering Service Organization Div (USA) |
| 566D187 PIECE 46 PRIMARY | General Electric Co Direct Current Motor and Generator Dept (USA) |
| Reference | Meaning |
|---|---|
| 566D187 PIECE 46 | 5/9 Secondary reference General Electric Co Apparatus and Engineering Service Organization Div |
| 566D187 PIECE 34 | 5/9 Secondary reference General Electric Co Direct Current Motor and Generator Dept |
| 566D187 PIECE 3 | C/1 Advisory reference — outside the item-of-supply concept General Electric Company Dba Ge |
| 566D187 | D/9 Drawing number reference only General Electric Co Direct Current Motor and Generator Dept |
| 566D187 PIECE 34 | 5/9 Secondary reference General Electric Co Apparatus and Engineering Service Organization Div |
NSN 4420-01-209-0283 is a Core Assembly,fluid Cooler, manufactured by General Electric Co Apparatus and Engineering Service Organization Div, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-209-0283 has 2 manufacturer part numbers on file: 566D187 PIECE 49 (General Electric Co Apparatus and Engineering Service Organization Div), 566D187 PIECE 46 (General Electric Co Direct Current Motor and Generator Dept).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.