|
|
|
National Stock Number:
4520-01-590-5214
Federal Supply Class:
4520
National Item Identification Number:
015905214
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.
|
Manufacturer Information:
| 821840 | 51704 | GREENHECK FAN CORPORATION |
|
Techincal Specification:
| OVERALL LENGTH | 6.000 INCHES NOMINAL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | AXLE AND BEARING ASSY | | MATERIAL | STEEL | | SPECIAL FEATURES | LINKAGE SIDE OF VENTILATION UNIT | | SURFACE TREATMENT | ZINC |
|
|