The Heater,water,electric, cataloged under National Stock Number 4520-01-218-8519, 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 Smith a O Water Products Co Div of a O Smith Corp. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 4520-01-218-8519 |
| Primary Part Number | ELSF10 |
| Item Name | Heater,water,electric |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Smith a O Water Products Co Div of a O Smith Corp |
| Status | ACTIVE |
| Phase | SINGLE |
| Heating Element Wattage Rating | 1500.000 SINGLE |
| Frequency in Hertz | 60.0 |
| Overall Diameter | 21.000 INCHES NOMINAL IN |
| Capacity | 10.0 GALLONS TANK |
| Heating Capacity Per Hour | 6.15 GALLONS |
| Attachment Device | NOT INCLUDED |
| Temp Rise Per Hour | 100.0 FAHRENHEIT DEGF |
| 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 |
|---|---|
| ELSF10 PRIMARY | Smith a O Water Products Co Div of a O Smith Corp (USA) |
| Reference | Meaning |
|---|---|
| 3572K52 | 5/9 Secondary reference Mcmaster-Carr Supply Co |
NSN 4520-01-218-8519 is a Heater,water,electric, manufactured by Smith a O Water Products Co Div of a O Smith Corp, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-218-8519 has 1 manufacturer part number on file: ELSF10 (Smith a O Water Products Co Div of a O Smith Corp).
Key specifications for ELSF10: Overall Height: 21.000 INCHES NOMINAL IN; Phase: SINGLE; Heating Element Wattage Rating: 1500.000 SINGLE; Frequency in Hertz: 60.0. 8 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.