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		                             National Stock Number: 4520-01-565-6784
  Federal Supply Class: 4520
  National Item Identification Number: 015656784
  Description: HEATER,VENTILATION,DUCT TYPE
  Detail: A HEAT TRANSFERRING UNIT UTILIZING A SEPARATE SOURCE OF STEAM OR HOT WATER AS THE HEAT TRANSFER MEDIUM. IT CONSISTS OF FINNED PARALLEL TUBES JOINED TOGETHER BY A HEADER OR HEADERS AND IS DESIGNED FOR INSTALLATION IN THE DUCTS OF A FORCED AIR CIRCULATING SYSTEM. IT MAY BE PROVIDED WITH A FLANGED OUTER CASING TO FACILITATE MOUNTING OF THE UNIT 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:
 | 266-2434 | 11083 | CATERPILLAR INC |   
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  Techincal Specification:
 | PART NAME ASSIGNED BY CONTROLLING AGENCY | COIL ASSEMBLY,HEATER |   
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