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		                        | National Stock Number:
 4130-01-553-3908
 
 Federal Supply Class:
 4130
 
 National Item Identification Number:
 015533908
 
 Description:
 CONTROL UNIT,AIR PRESSURE,MOTOR
 
 Detail:
 A MOTOR ACTUATED DEVICE USED TO MAINTAIN AN (ADJUSTABLE) CONSTANT PRESSURE DIFFERENCE BETWEEN TWO ROOMS IN A SHIP OR BETWEEN ONE ROOM AND OUTDOORS.  FOR SPRING LOADED DEVICE SEE CONTROL UNIT, AIR PRESSURE, SPRING LOADED (66597).
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 Manufacturer Information:
 
 | HCDR-250/16IN DIA | 51704 | GREENHECK FAN CORPORATION |  | S5620796-1 | 51704 | GREENHECK FAN CORPORATION | 
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 Techincal Specification:
 
 | PART NAME ASSIGNED BY CONTROLLING AGENCY | INAVY-DAMPER, VENTILATION |  | MATERIAL | STEEL CORROSION RESISTING |  | OVERALL DIAMETER | 16.000 INCHES MINIMUM |  | SPECIAL FEATURES | VELOCITY-5500;BLADE STYL-ROUND BUTTERFLY | 
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