The Core Assembly,fluid Cooler, cataloged under National Stock Number 4420-01-398-9999, 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 Thermal Engineering International (usa) Inc.. Government technical data includes 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-398-9999 |
| Primary Part Number | 700-D-619 |
| Item Name | Core Assembly,fluid Cooler |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Thermal Engineering International (usa) Inc. |
| Status | ACTIVE |
| Heat Transfer Method | INDIRECT |
| Material | ALUMINUM OVERALL |
| 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 |
|---|---|
| 700-D-619 PRIMARY | Thermal Engineering International (usa) Inc. (USA) |
| Reference | Meaning |
|---|---|
| 100-D-479 | 5/9 Secondary reference Thermal Engineering International Usa Inc |
| 700-D-619 | 5/9 Secondary reference Thermal Engineering International Usa Inc |
| 100-D-479 | D/9 Drawing number reference only Thermal Engineering International (usa) Inc. |
NSN 4420-01-398-9999 is a Core Assembly,fluid Cooler, manufactured by Thermal Engineering International (usa) Inc., classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-398-9999 has 1 manufacturer part number on file: 700-D-619 (Thermal Engineering International (usa) Inc.).
Key specifications for 700-D-619: Heat Transfer Method: INDIRECT; Special Features: REPLACEMENT PARTS FOR COOLER FLUID INDUSTRIAL P/N 500-D-153; Material: ALUMINUM OVERALL. 2 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.