The Heater,water,electric, cataloged under National Stock Number 4520-01-370-0430, 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 Rheem Mfg Co. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-370-0430 |
| Primary Part Number | E120-45-G 480V 3PH |
| Item Name | Heater,water,electric |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Rheem Mfg Co |
| Status | ACTIVE |
| Thermostatic Switch | INCLUDED |
| Water Outlet Connection Quantity | 1 |
| Phase | THREE |
| Overall Diameter | 28.250 INCHES NOMINAL IN |
| Capacity | 120.0 GALLONS TANK |
| Heating Capacity Per Hour | 230.0 GALLONS |
| Water Inlet Connection Quantity | 1 |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Attachment Device | NOT INCLUDED |
| Temp Rise Per Hour | 80.0 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 |
|---|---|
| E120-45-G 480V 3PH | Rheem Mfg Co (USA) |
| Reference | Meaning |
|---|---|
| EG-45-120-G 480V 3PH | C/1 Advisory reference — outside the item-of-supply concept Rheem Mfg Co |
| EG-45-120-G 440V 3PH | 3/9 Design control — primary reference Rheem Mfg Co |
NSN 4520-01-370-0430 is a Heater,water,electric, manufactured by Rheem Mfg Co, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-370-0430 has 1 manufacturer part number on file: E120-45-G 480V 3PH (Rheem Mfg Co).
Key specifications for E120-45-G 480V 3PH: Thermostatic Switch: INCLUDED; Water Outlet Connection Quantity: 1; Phase: THREE; Overall Diameter: 28.250 INCHES NOMINAL IN. 10 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.