The Heater,space,electric, cataloged under National Stock Number 4520-01-423-6546, 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 Valad Electric Heating Corp.. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4520-01-423-6546 |
| Primary Part Number | DFMH41.0-1-NM |
| Item Name | Heater,space,electric |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Valad Electric Heating Corp. |
| Status | ACTIVE |
| Heat Delivery Rate | 3412.0 BRITISH THERMAL UNIT |
| Phase | SINGLE |
| Frequency in Hertz | 50.0 OR 60.0 |
| Current Type | AC |
| Inclosure Material | STEEL CORROSION RESISTING |
| Voltage in Volts | 440.0 |
| Heat Outlet Quantity | 1 |
| Heat Discharge Outlet Type | STATIONARY |
| Heat Delivery Direction | HORIZONTAL AND VERTICAL |
| Height | 21.750 INCHES NOMINAL IN |
| Surface Treatment | CHROMATE ZINC AND ENAMEL |
| Depth | 4.000 INCHES NOMINAL IN |
| Width | 17.750 INCHES NOMINAL IN |
| Heat Directing Device | DIRECTIONAL GRILLE |
| Mounting Type | WALL SUSPENDED, ROOM INTERIOR |
| Heating Element Type | ELECTRIC NONIMMERSION |
| Current Rating in Amps | 2.3 |
| Operating Control Type | HAND SWITCH AND THERMOSTATIC |
| 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 |
|---|---|
| DFMH41.0-1-NM PRIMARY | Valad Electric Heating Corp. (USA) |
| Reference | Meaning |
|---|---|
| DFMH41.0-1NM | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 86-0623-6 | D/9 Drawing number reference only Valad Electric Heating Corp. |
NSN 4520-01-423-6546 is a Heater,space,electric, manufactured by Valad Electric Heating Corp., classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-423-6546 has 1 manufacturer part number on file: DFMH41.0-1-NM (Valad Electric Heating Corp.).
Key specifications for DFMH41.0-1-NM: Heat Delivery Rate: 3412.0 BRITISH THERMAL UNIT; Phase: SINGLE; Frequency in Hertz: 50.0 OR 60.0; Current Type: AC. 18 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.