The Core Assembly,fluid Cooler, cataloged under National Stock Number 4420-00-360-2129, 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 Motors Llc Dba General Motors Llc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-00-360-2129 |
| Primary Part Number | 3040-8-160 |
| Item Name | Core Assembly,fluid Cooler |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Core Width | 3.125 INCHES NOMINAL IN |
| Heat Transfer Method | INDIRECT |
| Effective Heat Transfer Surface Area | 3.7 SQUARE FEET |
| Core Height | 4.188 INCHES NOMINAL IN |
| Style Designator | PLATE, RECTANGULAR OR SQUARE |
| Tube Quantity | 12 |
| Tube Attachment Method | BRAZED BOTH ENDS |
| Material Thickness | 0.035 INCHES NOMINAL IN |
| Core Length | 4.125 INCHES NOMINAL IN |
| Material | COPPER ALLOY TUBES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3040-8-160 | General Motors Llc Dba General Motors Llc (USA) |
| HN8502368 | General Motors Llc Dba General Motors Llc (USA) |
| RC3574 | General Motors Llc Dba General Motors Llc (USA) |
| 26J507-9 | General Motors Llc Dba General Motors Llc (USA) |
| E2689-9 | General Motors Llc Dba General Motors Llc (USA) |
| HE212-200 | General Motors Llc Dba General Motors Llc (USA) |
| 26J508PC9 | General Motors Llc Dba General Motors Llc (USA) |
| 75257C | General Motors Corp (USA) |
| 8502368 | General Motors Corp (USA) |
| Reference | Meaning |
|---|---|
| HE212-200 | 5/9 Secondary reference General Motors Corp |
| MILC15730TYPEB | 4/1 Identification reference U.S. Government activity |
| 26J508PC9 | 5/9 Secondary reference General Motors Corp |
| RC3574 | 5/9 Secondary reference General Motors Corp |
| 26J507-9 | 5/9 Secondary reference General Motors Corp |
| 3040-8-160 | 5/9 Secondary reference General Motors Corp |
| HN8502368 | 5/9 Secondary reference General Motors Corp |
| E2689-9 | 5/9 Secondary reference General Motors Corp |
| 8502368 | 3/9 Design control — primary reference General Motors Corp Harrison Radiator Div |
NSN 4420-00-360-2129 is a Core Assembly,fluid Cooler, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-00-360-2129 has 9 manufacturer part numbers on file: 3040-8-160 (General Motors Llc Dba General Motors Llc), HN8502368 (General Motors Llc Dba General Motors Llc), RC3574 (General Motors Llc Dba General Motors Llc), 26J507-9 (General Motors Llc Dba General Motors Llc), E2689-9 (General Motors Llc Dba General Motors Llc) and 4 more.
Key specifications for 3040-8-160: Core Width: 3.125 INCHES NOMINAL IN; Heat Transfer Method: INDIRECT; Effective Heat Transfer Surface Area: 3.7 SQUARE FEET; Core Height: 4.188 INCHES NOMINAL IN. 10 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.
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.