The Core Assembly,fluid Heater,indus, cataloged under National Stock Number 4420-00-360-2133, 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 Corp. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-00-360-2133 |
| Primary Part Number | 8502431 |
| Item Name | Core Assembly,fluid Heater,indus |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | General Motors Corp |
| Status | ACTIVE |
| Core Width | 3.125 INCHES NOMINAL IN |
| Heat Transfer Method | INDIRECT |
| Effective Heat Transfer Surface Area | 5.3 SQUARE FEET |
| Core Height | 4.313 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 | 8.750 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 |
|---|---|
| 8502431 | General Motors Corp (USA) |
| Reference | Meaning |
|---|---|
| 3137203 | D/9 Drawing number reference only U.S. Government activity |
| MILC15730TYPEB | 4/1 Identification reference U.S. Government activity |
| 8502431 | 3/9 Design control — primary reference General Motors Corp Harrison Radiator Div |
| 3137203 QC1 | 5/2 Secondary reference U.S. Government activity |
NSN 4420-00-360-2133 is a Core Assembly,fluid Heater,indus, manufactured by General Motors Corp, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-00-360-2133 has 1 manufacturer part number on file: 8502431 (General Motors Corp).
Key specifications for 8502431: Core Width: 3.125 INCHES NOMINAL IN; Heat Transfer Method: INDIRECT; Effective Heat Transfer Surface Area: 5.3 SQUARE FEET; Core Height: 4.313 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.