| 
                            
                                |  |  
                                |   |  
		                        | National Stock Number:
 4520-01-231-7154
 
 Federal Supply Class:
 4520
 
 National Item Identification Number:
 012317154
 
 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.
 |  
		                        | 
 Manufacturer Information:
 
 | 501-5003660 | 80064 | NAVAL SHIP SYSTEMS COMMAND |  | 501-5003660 AY99F | 80064 | NAVAL SHIP SYSTEMS COMMAND |  | 7250-999 | 43689 | HUNTINGTON INGALLS INC |  | 7250-999 AY99F 11X11IN. | 43689 | HUNTINGTON INGALLS INC | 
 |  
					            | 
 Techincal Specification:
 
 | MATERIAL | STEEL |  | OPERATION METHOD | AUTOMATIC |  | OVERALL LENGTH | 11.000 INCHES NOMINAL |  | OVERALL WIDTH | 11.000 INCHES NOMINAL |  | SHAPE | SQUARE | 
 |  |