The Core Assembly,fluid Cooler, cataloged under National Stock Number 4420-01-727-2265, 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 Api Heat Transfer Thermasys Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Core Assembly,fluid Cooler |
| FSC / FSG | 4420 — Heat Exchangers and Steam Condensers (FSG 44) |
| Manufacturers | Api Heat Transfer Thermasys Corporation (CAGE 4C8A9) |
| Parameter | Value |
|---|---|
| NSN | 4420-01-727-2265 |
| Primary Part Number | 2503-03-048-007 |
| Item Name | Core Assembly,fluid Cooler |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Api Heat Transfer Thermasys Corporation |
| Status | ACTIVE |
| 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 |
|---|---|
| 2503-03-048-007 PRIMARY | Api Heat Transfer Thermasys Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1543-03-048-001 | D/9 Drawing number reference only Api Heat Transfer Thermasys Corporation |
NSN 4420-01-727-2265 is a Core Assembly,fluid Cooler, manufactured by Api Heat Transfer Thermasys Corporation, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-727-2265 has 1 manufacturer part number on file: 2503-03-048-007 (Api Heat Transfer Thermasys Corporation).
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.