The Unit Heater,air Circulating,stea, cataloged under National Stock Number 4520-00-944-1446, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4520-00-944-1446 |
| Item Name | Unit Heater,air Circulating,stea |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| Heat Delivery Rate | 101900.0 BRITISH THERMAL UNIT |
| Phase | SINGLE |
| Frequency in Hertz | 60.0 |
| Current Type | AC |
| Heat Medium Type | HOT WATER OR STEAM |
| Voltage in Volts | 115.0 |
| Diameter | 51.625 INCHES NOMINAL IN |
| Heat Outlet Quantity | 2 |
| Heat Discharge Outlet Type | ADJUSTABLE |
| Heat Delivery Direction | VERTICAL |
| Height | 88.000 INCHES NOMINAL IN |
| Maximum Pressure Limit | 5.0 POUNDS PER SQUARE INCH GAGE LBS |
| Depth | 73.000 INCHES NOMINAL IN |
| Heat Directing Device | ADJUSTABLE LOUVER |
| Outlet Position | 180 DEG APART |
| Heating Element Type | HOT WATER COIL OR STEAM COIL |
| Current Rating in Amps | 8.5 |
| 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 |
|---|---|
| 40HCRV19581 | 3/9 Design control — primary reference Wing Industries |
NSN 4520-00-944-1446 is a Unit Heater,air Circulating,stea, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
Key specifications for 4520-00-944-1446: Heat Delivery Rate: 101900.0 BRITISH THERMAL UNIT; Phase: SINGLE; Frequency in Hertz: 60.0; Current Type: AC. 17 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.