The Heater,duct Type,portable, cataloged under National Stock Number 4520-00-509-0740, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-00-509-0740 |
| Item Name | Heater,duct Type,portable |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| Heat Delivery Rate | 230000.0 BRITISH THERMAL UNIT |
| Heat Medium Type | AIR |
| Fuel Type | GASOLINE |
| Heat Outlet Quantity | 1 |
| Nondefinitive Spec/std Data | MC-1 TYPE |
| Height | 26.000 INCHES NOMINAL IN |
| Prime Mover Type | GASOLINE ENGINE |
| Circulated Air Type | HEATED |
| Mounting Type | WHEEL |
| Heating Element Type | COMBUSTION CHAMBER |
| Operating Control Type | THERMOSTATIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MILH24934TYPEMC1 | 4/1 Identification reference U.S. Government activity |
| PT250-37 | 3/9 Design control — primary reference Snydergeneral Corp Dba American Air Filter |
NSN 4520-00-509-0740 is a Heater,duct Type,portable, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
Key specifications for 4520-00-509-0740: Heat Delivery Rate: 230000.0 BRITISH THERMAL UNIT; Heat Medium Type: AIR; Fuel Type: GASOLINE; Heat Outlet Quantity: 1. 11 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). 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.