The Heater,water,electric, cataloged under National Stock Number 4520-01-262-9305, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Chromalox Inc Dba Chromalox Precision Heat and Control, Inc. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | Heater,water,electric |
| FSC / FSG | 4520 — Space and Water Heating Equipment (FSG 45) |
| Manufacturers | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (CAGE 65586); Landoll Company, Llc (CAGE 65459); Watlow Electric Manufacturing Co Dba Watlow (CAGE 79221) |
| Parameter | Value |
|---|---|
| NSN | 4520-01-262-9305 |
| Primary Part Number | NWH-3925E2-XX |
| Item Name | Heater,water,electric |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
| 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 |
|---|---|
| NWH-3925E2-XX PRIMARY | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
| 515-2144 PRIMARY | Landoll Company, Llc (USA) |
| CBLC720L10 | Watlow Electric Manufacturing Co Dba Watlow (USA) |
| Reference | Meaning |
|---|---|
| 40B209581 | 5/9 Secondary reference Wellman Thermal Systems Corp |
NSN 4520-01-262-9305 is a Heater,water,electric, manufactured by Chromalox Inc Dba Chromalox Precision Heat and Control, Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-262-9305 has 3 manufacturer part numbers on file: NWH-3925E2-XX (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), 515-2144 (Landoll Company, Llc), CBLC720L10 (Watlow Electric Manufacturing Co Dba Watlow).
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.