Part Details | STATIONARY DUCT TYPE HEATER
4520-01-287-3991 A device capable of producing heat from gas, liquid fuel, or an electrical heating element designed for permanent installation in sheet metal ducts of a forced air circulating system. It consists of (1) a finned, steel burner tube, a combustion air blower, a control panel, and a constant level fuel supply system or (2) a device having a heating element which when connected to an electrical source, directly imparts heat. It may be provided with a flanged outer casing to facilitate mounting in planned or existing duct work. Circulation of the heated air is achieved by use of a blower or fan not integral with the heating unit.
Alternate Parts: TFZ33M, TFZ-33M, TFZ33M, TFZ-33M, MILH22594, MIL-H-22594, 4520-01-287-3991, 01-287-3991, 4520012873991, 012873991
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 45 | OCT 21, 1988 | 01-287-3991 | 17014 ( HEATER, DUCT TYPE, STATIONARY ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 4520-01-287-3991
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| TFZ-33M | 74974 | BLAIR MERRIAM FRESH FRUIT ANDPRODUCE CO INC |
| TFZ-33M | 74924 | INDEECO LLCDBA INDEECO |
| MIL-H-22594 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
Technical Data | NSN 4520-01-287-3991
| Characteristic | Specifications |
|---|---|
| HEAT DELIVERY RATE | 156316.8 BRITISH THERMAL UNIT |
| CURRENT TYPE | AC |
| VOLTAGE IN VOLTS | 440.0 |
| FREQUENCY IN HERTZ | 60.0 |
| PHASE | THREE |
| CURRENT RATING IN AMPS | 1054.5 |
| HEATING ELEMENT TYPE | ELECTRIC NONIMMERSION |
| HEAT MEDIUM TYPE | AIR |
| MOUNTING TYPE | VENTILATION DUCT |
| HEIGHT | 16.750 INCHES NOMINAL |
| WIDTH | 42.000 INCHES NOMINAL |
| DEPTH | 8.000 INCHES NOMINAL |
| INCLOSURE MATERIAL | STEEL CORROSION RESISTING |
| OPERATING CONTROL TYPE | |
| SPECIAL FEATURES | NON-MAGNETIC |
| SPECIFICATION/STANDARD DATA | 81349-MIL-H-22594 GOVERNMENT SPECIFICATION |
| NONDEFINITIVE SPEC/STD DATA | M TYPE |