The Core Assembly,fluid Cooler, cataloged under National Stock Number 4420-01-288-0843, 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 Escoa Fintube Corp. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-288-0843 |
| Primary Part Number | 48620032 |
| Item Name | Core Assembly,fluid Cooler |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Escoa Fintube Corp |
| Status | ACTIVE |
| Heat Transfer Method | INDIRECT |
| Core Height | 8.865 INCHES NOMINAL IN |
| Style Designator | FINNED "S" TUBE |
| Tube Quantity | 140 |
| Material Thickness | 0.095 INCHES NOMINAL IN |
| Core Length | 92.075 INCHES NOMINAL IN |
| Tubing Outside Diameter | 1.900 INCHES NOMINAL BOTH INLET AND OUTLET TUBE ENDS IN |
| Material | STEEL 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 |
|---|---|
| 48620032 PRIMARY | Escoa Fintube Corp (USA) |
| Reference | Meaning |
|---|---|
| 48620032 | 5/9 Secondary reference U.S. Government activity |
NSN 4420-01-288-0843 is a Core Assembly,fluid Cooler, manufactured by Escoa Fintube Corp, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-288-0843 has 1 manufacturer part number on file: 48620032 (Escoa Fintube Corp).
Key specifications for 48620032: Heat Transfer Method: INDIRECT; Core Height: 8.865 INCHES NOMINAL IN; Style Designator: FINNED "S" TUBE; Tube Quantity: 140. 8 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.