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		                        | National Stock Number:
 4520-01-236-0452
 
 Federal Supply Class:
 4520
 
 National Item Identification Number:
 012360452
 
 Description:
 HEATER,DUCT TYPE,STATIONARY
 
 Detail:
 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.
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 Manufacturer Information:
 
 | 106-056816-000 | 65586 | CHROMALOX INC |  | 106-056816-032 | 65586 | CHROMALOX INC |  | EH30M | 17032 | VALAD ELECTRIC HEATING CORP. |  | M22594-30M | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |  | MIL-H-22594 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |  | MIL-PRF-22594 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |  | TFZ-30M | 74924 | INDEECO LLC | 
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 Techincal Specification:
 
 | CURRENT RATING IN AMPS | 68.6 |  | CURRENT TYPE | AC |  | DEPTH | 8.000 INCHES NOMINAL |  | DUCT HEIGHT | 15.250 INCHES |  | DUCT WIDTH | 30.000 INCHES |  | FREQUENCY IN HERTZ | 60.0 |  | HEAT DELIVERY RATE | 103042.4 BRITISH THERMAL UNIT |  | HEAT MEDIUM TYPE | AIR |  | HEATING ELEMENT TYPE | ELECTRIC NONIMMERSION |  | HEIGHT | 18.250 INCHES NOMINAL |  | INCLOSURE MATERIAL | STEEL |  | PHASE | THREE |  | MOUNTING TYPE | VENTILATION DUCT |  | NONDEFINITIVE SPEC/STD DATA | M TYPE AND 30EH SIZE |  | SPECIAL FEATURES | MAGNETIC; MANUAL RESET |  | SPECIFICATION/STANDARD DATA | 81349-MIL-H-22594 GOVERNMENT SPECIFICATION |  | VOLTAGE IN VOLTS | 440.0 |  | WIDTH | 39.000 INCHES NOMINAL | 
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