The Core Assembly,fluid Cooler, cataloged under National Stock Number 4420-01-420-6549, 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 Aqua-Chem, Inc. Dba Aqua-Chem Inc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4420-01-420-6549 |
| Primary Part Number | 534-9608 |
| Item Name | Core Assembly,fluid Cooler |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Aqua-Chem, Inc. Dba Aqua-Chem Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 534-9608 PRIMARY | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| Reference | Meaning |
|---|---|
| 534-D-9608 | 5/1 Secondary reference Aqua-Chem, Inc. |
| 534-9608 | 5/9 Secondary reference Aqua-Chem, Inc. |
| 700-D-8017 ITEM 2 | 5/1 Secondary reference Aqua-Chem, Inc. |
NSN 4420-01-420-6549 is a Core Assembly,fluid Cooler, manufactured by Aqua-Chem, Inc. Dba Aqua-Chem Inc, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-420-6549 has 1 manufacturer part number on file: 534-9608 (Aqua-Chem, Inc. Dba Aqua-Chem Inc).
Key specifications for 534-9608: Part Name Assigned by Controlling Agency: TUBE BUNDLE; End Item Identification: HEAT EXCHANGER. 0 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.
NSN 4420-01-420-6549 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.