The Core Assembly,fluid Heater,indus, cataloged under National Stock Number 4420-01-575-3985, 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 Watts Heating and Hot Water Solutions Llc Dba Pvi Industries Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 4420-01-575-3985 |
| Primary Part Number | 103198 |
| Item Name | Core Assembly,fluid Heater,indus |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Watts Heating and Hot Water Solutions Llc Dba Pvi Industries Llc |
| 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 |
|---|---|
| 103198 PRIMARY | Watts Heating and Hot Water Solutions Llc Dba Pvi Industries Llc (USA) |
NSN 4420-01-575-3985 is a Core Assembly,fluid Heater,indus, manufactured by Watts Heating and Hot Water Solutions Llc Dba Pvi Industries Llc, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-575-3985 has 1 manufacturer part number on file: 103198 (Watts Heating and Hot Water Solutions Llc Dba Pvi Industries Llc).
1 possible match (shared part number, not a government interchangeability claim): 5895-01-633-4531. Verify interchangeability with system specifications before substitution.
Key specifications for 103198: Part Name Assigned by Controlling Agency: COMBUSTION CHAMBER; End Item Identification: HEATER, WATER, 400,000 BTU. 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.
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.