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National Stock Number:
4520-01-321-3745
Federal Supply Class:
4520
National Item Identification Number:
013213745
Description:
DRAFT CONTROL,FLUE,AUTOMATIC
Detail:
AN ITEM CONSISTING OF A METAL FRAME IN WHICH IS INSERTED A FLAT METAL PLATE MOUNTED ON A SHAFT. THE PLATE, FLUCTUATING AUTOMATICALLY ACCORDING TO CHANGES IN ATMOSPHERIC PRESSURE, CONTROLS THE STACK OR FLUE DRAFT AND MAINTAINS AN ABSOLUTE CONSTANCY OF DRAFT REGARDLESS OF VARYING WEATHER CONDITIONS.
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Manufacturer Information:
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Techincal Specification:
| GENERAL CHARACTERISTICS ITEM DESCRIPTION | MODEL INCLUDES THIMBLE; PIPE DIA. 5 AND 6 INCHES |
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