The Heater,duct Type,portable, cataloged under National Stock Number 4520-00-509-0741, 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 Raytheon Company. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-00-509-0741 |
| Primary Part Number | SE0973-801 |
| Item Name | Heater,duct Type,portable |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Raytheon Company |
| Status | ACTIVE |
| Maximum Air Flow Rate | 617.4 CUBIC FEET PER MINUTE |
| Speed Adjustments | SINGLE SPEED |
| Heat Delivery Rate | 230000.0 BRITISH THERMAL UNIT |
| Current Type | AC |
| Integral Fuel Tank Capacity | 28.0 GALLONS |
| Heat Medium Type | AIR |
| Quantity | 1 |
| Fuel Type | GASOLINE |
| Height | 48.000 INCHES NOMINAL IN |
| Air Circulation Device | SQUIRREL CAGE BLOWER |
| Depth | 69.000 INCHES NOMINAL IN |
| Width | 42.000 INCHES NOMINAL IN |
| Flue Connection Location | TOP VERTICAL MTD |
| Prime Mover Type | ELECTRIC MOTOR |
| Circulated Air Type | HEATED |
| Ignition Method | ELECTRODE |
| Mounting Type | WHEEL |
| Fuel Feed Method | INTERNAL PUMP |
| Heating Element Type | COMBUSTION CHAMBER |
| Operating Control Type | HAND SWITCH |
| 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 |
|---|---|
| SE0973-801 PRIMARY | Raytheon Company (USA) |
| Reference | Meaning |
|---|---|
| SE0973-801 | 3/9 Design control — primary reference Hughes Missile Systems Co San Diego |
NSN 4520-00-509-0741 is a Heater,duct Type,portable, manufactured by Raytheon Company, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-00-509-0741 has 1 manufacturer part number on file: SE0973-801 (Raytheon Company).
Key specifications for SE0973-801: Maximum Air Flow Rate: 617.4 CUBIC FEET PER MINUTE; Speed Adjustments: SINGLE SPEED; Heat Delivery Rate: 230000.0 BRITISH THERMAL UNIT; Current Type: AC. 20 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.