The Furnace,warm Air, cataloged under National Stock Number 4520-01-227-0963, 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 Lennox Industries Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-227-0963 |
| Primary Part Number | 012Q4-140 |
| Item Name | Furnace,warm Air |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Lennox Industries Inc |
| Status | ACTIVE |
| Heat Delivery Rate | 107000.0 BRITISH THERMAL UNIT |
| Phase | SINGLE |
| Frequency in Hertz | 60.0 |
| Current Type | AC |
| Heat Medium Type | AIR |
| Voltage in Volts | 120.0 |
| Fuel Type | FUEL OIL |
| Heat Outlet Quantity | 1 |
| Heat Discharge Outlet Type | STATIONARY |
| Heat Delivery Direction | VERTICAL |
| Height | 53.000 INCHES NOMINAL IN |
| Depth | 26.125 INCHES NOMINAL IN |
| Width | 26.250 INCHES NOMINAL IN |
| Heat Directing Device | DIRECTIONAL GRILLE |
| Ignition Method | PILOT |
| Mounting Type | FLOOR SURFACE, FREE STANDING, DUCTED |
| Heating Element Type | COMBUSTION CHAMBER |
| Operating Control Type | 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 |
|---|---|
| 012Q4-140 PRIMARY | Lennox Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 011-140-2 | 5/9 Secondary reference Lennox Industries Inc |
NSN 4520-01-227-0963 is a Furnace,warm Air, manufactured by Lennox Industries Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-227-0963 has 1 manufacturer part number on file: 012Q4-140 (Lennox Industries Inc).
Key specifications for 012Q4-140: Heat Delivery Rate: 107000.0 BRITISH THERMAL UNIT; Phase: SINGLE; Frequency in Hertz: 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.