The Waterbox,heater, cataloged under National Stock Number 4420-01-184-3370, 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Waterbox,heater |
| FSC / FSG | 4420 — Heat Exchangers and Steam Condensers (FSG 44) |
| Manufacturers | Aqua-Chem, Inc. Dba Aqua-Chem Inc (CAGE 0EXU3) |
| Parameter | Value |
|---|---|
| NSN | 4420-01-184-3370 |
| Primary Part Number | 362-C7540-000 |
| Item Name | Waterbox,heater |
| 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 A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 362-C7540-000 PRIMARY | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| Reference | Meaning |
|---|---|
| 362-C7540-000 | 5/9 Secondary reference Aqua-Chem, Inc. |
| 362-C7540 | 5/9 Secondary reference Aqua-Chem, Inc. |
| 649-D 7524 ITEM 3 | 5/9 Secondary reference Aqua-Chem, Inc. |
| 649-D7524-000 ITEM 3 | 3/9 Design control — primary reference Aqua-Chem, Inc. |
| 649-D 7524 | D/9 Drawing number reference only Aqua-Chem, Inc. |
NSN 4420-01-184-3370 is a Waterbox,heater, manufactured by Aqua-Chem, Inc. Dba Aqua-Chem Inc, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-184-3370 has 1 manufacturer part number on file: 362-C7540-000 (Aqua-Chem, Inc. Dba Aqua-Chem Inc).
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.