The Heater,water,electric, cataloged under National Stock Number 4520-01-486-3781, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-486-3781 |
| 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 | 3/4-14 NPT |
| Water Outlet Connection Quantity | 1 |
| Heating Element Wattage Rating | 1500.000 SINGLE |
| Voltage in Volts and Current Type | 240.0 AC |
| Capacity | 6.0 GALLONS TANK |
| Heating Capacity Per Hour | 7.0 GALLONS |
| Water Inlet Connection Quantity | 1 |
| Operating Pressure | 300.00 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Water Inlet Connection Thread Size and Series/type Designator | 3/4-14 NPT |
| Insulated Feature | INCLUDED |
| Attachment Device | INCLUDED |
| Heating Element Type | SCREW TYPE ELEMENT |
| Temp Rise Per Hour | 90.0 FAHRENHEIT DEGF |
| Material | GLASS |
| 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 |
|---|---|
| M-I-WH6U6SS13 | 5/9 Secondary reference U.S. Government activity |
| RE16WV6 | 3/2 Design control — primary reference U.S. Government activity |
| M1WH6U6SS | 5/9 Secondary reference U.S. Government activity |
| M1WH6U6SS-1NCL | 5/9 Secondary reference U.S. Government activity |
NSN 4520-01-486-3781 is a Heater,water,electric, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
Key specifications for 4520-01-486-3781: Thermostatic Switch: INCLUDED; Water Outlet Connection Thread Size and Series/type Designator: 3/4-14 NPT; Water Outlet Connection Quantity: 1; Heating Element Wattage Rating: 1500.000 SINGLE. 15 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.