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		                             National Stock Number: 4520-01-231-6190
  Federal Supply Class: 4520
  National Item Identification Number: 012316190
  Description: DAMPER,FLUE
  Detail: A CAST IRON OR SHEET METAL PLATE DESIGNED TO BE INSTALLED IN A BOILER, HEATER, STOVE, OR FURNACE FLUE PIPE TO CONTROL THE DRAFT, AND/OR IN AN AIR DUCT TO CONTROL THE PASSAGE OF AIR. EXCLUDES VALVE, BUTTERFLY.
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  Manufacturer Information:
 | 501-5003660 | 80064 | NAVAL SHIP SYSTEMS COMMAND |  | 501-5003660 AY99E | 80064 | NAVAL SHIP SYSTEMS COMMAND |  | 7250-999 | 43689 | HUNTINGTON INGALLS INC |  | 7250-999 AY99E 13X10IN. | 43689 | HUNTINGTON INGALLS INC |   
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  Techincal Specification:
 | MATERIAL | STEEL |  | OPERATION METHOD | AUTOMATIC |  | OVERALL LENGTH | 13.000 INCHES NOMINAL |  | OVERALL WIDTH | 10.000 INCHES NOMINAL |  | SHAPE | RECTANGULAR |   
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