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		                             National Stock Number: 4520-00-218-0808
  Federal Supply Class: 4520
  National Item Identification Number: 002180808
  Description: HEATER,DUCT TYPE,PORTABLE
  Detail: A HEATER EQUIPPED WITH INTEGRAL CONNECTION(S) FOR ATTACHING DUCT(S) TO DIRECT HEAT TO ENGINE SURFACE, RAILROAD CARS, WAREHOUSES, TENTS, AND THE LIKE. IT IS EQUIPPED WITH A BLOWER (FAN) AND MUST BE MOUNTED ON SKIDS, WHEELS, AND THE LIKE OR CAPABLE OF BEING HAND-CARRIED. EXCLUDES HEATER, SPACE.
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  Manufacturer Information:
 | B3077CS53 | 93084 | VBM CORP |  | MIL-H-11049 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |   
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  Techincal Specification:
 | AIR CIRCULATION DEVICE | PROPELLER FAN |  | CIRCULATED AIR TYPE | HEATED |  | DEPTH | 46.000 INCHES NOMINAL |  | FUEL FEED METHOD | EXTERNAL PUMP |  | FUEL TYPE | GASOLINE |  | HEAT DELIVERY DIRECTION | HORIZONTAL |  | HEAT DELIVERY RATE | 250000.0 BRITISH THERMAL UNIT |  | HEAT DIRECTING DEVICE | ADJUSTABLE LOUVER |  | HEAT DISCHARGE OUTLET TYPE | ADJUSTABLE |  | HEAT MEDIUM TYPE | AIR |  | HEAT OUTLET QUANTITY | 2 |  | HEATING ELEMENT TYPE | COMBUSTION CHAMBER |  | HEIGHT | 40.000 INCHES NOMINAL |  | IGNITION METHOD | MANUAL |  | INCLOSURE MATERIAL | STEEL |  | MAXIMUM AIR FLOW RATE | 1200.0 CUBIC FEET PER MINUTE |  | MOUNTING TYPE | WHEEL |  | OPERATING CONTROL TYPE | THERMOSTATIC |  | OUTLET POSITION | IN THE SAME DIRECTION |  | PRIME MOVER TYPE | GASOLINE ENGINE |  | QUANTITY | 1 |  | SPEED ADJUSTMENTS | SINGLE SPEED |  | WIDTH | 30.000 INCHES NOMINAL |   
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