The Heater,water,electric, cataloged under National Stock Number 4520-01-366-9447, 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 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4520-01-366-9447 |
| Primary Part Number | 82VR52-2 |
| 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 Thread Size and Series/type Designator | 3/4-14 NPT |
| Water Outlet Connection Quantity | 1 |
| Phase | SINGLE |
| Heating Element Wattage Rating | 4500.000 SINGLE |
| Frequency in Hertz | 60.0 |
| Capacity | 50.0 GALLONS TANK |
| Heating Capacity Per Hour | 18.4 GALLONS |
| Water Inlet Connection Quantity | 1 |
| Water Inlet Connection Thread Size and Series/type Designator | 3/4-14 NPT |
| Insulated Feature | INCLUDED |
| Attachment Device | NOT INCLUDED |
| Heating Element Type | DOUBLE |
| Switch Type | SINGLE THROW |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 82VR52-2 PRIMARY | Rheem Mfg Co (USA) |
| Reference | Meaning |
|---|---|
| 81G52D | 5/9 Secondary reference Rheem Mfg Co |
| 81GV52D | 5/9 Secondary reference Rheem Mfg Co |
NSN 4520-01-366-9447 is a Heater,water,electric, manufactured by Rheem Mfg Co, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-366-9447 has 1 manufacturer part number on file: 82VR52-2 (Rheem Mfg Co).
Key specifications for 82VR52-2: Thermostatic Switch: INCLUDED; Water Outlet Connection Thread Size and Series/type Designator: 3/4-14 NPT; Water Outlet Connection Quantity: 1; Phase: 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.