The Heater,water,electric, cataloged under National Stock Number 4520-01-654-5208, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-654-5208 |
| Item Name | Heater,water,electric |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| Thermostatic Switch | INCLUDED |
| Water Outlet Connection Thread Size and Series/type Designator | 0.750 DIELECTRIC FITTINGS NPT |
| Heating Element Wattage Rating | 4000.0 SINGLE |
| Voltage in Volts and Current Type | 480.0 AC |
| Overall Diameter | 20.000 INCHES NOMINAL IN |
| Capacity | 40.0 GALLONS TANK |
| Heating Capacity Per Hour | 56.0 GALLONS |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Water Inlet Connection Thread Size and Series/type Designator | 0.750 DIELECTRIC FITTINGS NPT |
| Insulated Feature | INCLUDED |
| Temp Rise Per Hour | 100.0 FAHRENHEIT DEGF |
| Material | STEEL |
| 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 |
|---|---|
| LD-40S3-3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4520-01-654-5208 is a Heater,water,electric, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
Key specifications for 4520-01-654-5208: Thermostatic Switch: INCLUDED; Overall Height: 46.875 INCHES NOMINAL IN; Water Outlet Connection Thread Size and Series/type Designator: 0.750 DIELECTRIC FITTINGS NPT; Heating Element Wattage Rating: 4000.0 SINGLE. 12 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.