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National Stock Number: 4520-17-123-6199
Federal Supply Class: 4520
National Item Identification Number: 171236199
Description: UNIT HEATER,AIR CIR
Detail: A HEATING DEVICE WHICH IS CONNECTED TO A CENTRAL SOURCE OF HOT WATER OR STEAM, FOR THE PURPOSE OF DISTRIBUTING HEAT, BY MEANS OF A MOTOR-DRIVEN FAN, THROUGHOUT A ROOM OR BUILDING. BY INTRODUCING OUTSIDE AIR, IT MAY ALSO BE UTILIZED FOR VENTILATING PURPOSES OR A COMBINATION OF HEATING AND VENTILATING.
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