The Heater,duct Type,stationary, cataloged under National Stock Number 4520-01-318-0803, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-318-0803 |
| Item Name | Heater,duct Type,stationary |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| Heat Delivery Rate | 81888.0 BRITISH THERMAL UNIT |
| Phase | THREE |
| Frequency in Hertz | 60.0 |
| Current Type | AC |
| Heat Medium Type | AIR |
| Inclosure Material | STEEL CORROSION RESISTING |
| Extra Long Reference Number | TFZU-24.0-30X30-480/3/2/24-C1C5M3Q3T4ZZ2U5L3 |
| Voltage in Volts | 480.0 |
| Height | 30.000 INCHES NOMINAL IN |
| Width | 30.000 INCHES NOMINAL IN |
| Mounting Type | VENTILATION DUCT |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY EXTRA LONG REFERENCE NUMBER |
| Heating Element Type | ELECTRIC NONIMMERSION |
| Current Rating in Amps | 50.0 |
| 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 |
| Reference | Meaning |
|---|---|
| C1C5M3Q3T4ZZ2U5 L3 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| TFZU-24.0-30X30 -480/3/2/24- | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| TFZU-24.0-30X30-480/3/2/24 | 5/1 Secondary reference Indeeco Llc Dba Indeeco |
| TFZU-24.0-30X30-480/3/2/24-C1C5- | 3/1 Design control — primary reference Indeeco Llc Dba Indeeco |
NSN 4520-01-318-0803 is a Heater,duct Type,stationary, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
Key specifications for 4520-01-318-0803: Heat Delivery Rate: 81888.0 BRITISH THERMAL UNIT; Phase: THREE; Frequency in Hertz: 60.0; Current Type: AC. 15 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.