The Heater,water,steam-Hot Water Hea, cataloged under National Stock Number 4410-01-441-5684, is classified within Federal Supply Class 4410 (Industrial Boilers) of the Furnace, Steam, Drying, Nuclear Reactors group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4410-01-441-5684 |
| Item Name | Heater,water,steam-Hot Water Hea |
| FSC / FSG | 4410 / 44 — Industrial Boilers |
| Status | ACTIVE |
| Mounting Position | VERTICAL |
| Heating Capacity Per Hour | 600.0 GALLONS |
| Operating Pressure | 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 1B+03 SER NO.H96-160 | 5/2 Secondary reference U.S. Government activity |
| 1B+03 SER #H96- | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| B+03-1.00-S | 3/2 Design control — primary reference U.S. Government activity |
| B+03 | 5/1 Secondary reference U.S. Government activity |
NSN 4410-01-441-5684 is a Heater,water,steam-Hot Water Hea, classified under FSC 4410, Industrial Boilers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5330-01-541-0325. Verify interchangeability with system specifications before substitution.
Key specifications for 4410-01-441-5684: Mounting Position: VERTICAL; Heating Capacity Per Hour: 600.0 GALLONS; Operating Pressure: 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS. 3 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.