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National Stock Number:
4520-01-452-6050
Federal Supply Class:
4520
National Item Identification Number:
014526050
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:
| 197A168-1 | 03640 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
| OVERALL HEIGHT | 17.068 INCHES NOMINAL | | OVERALL LENGTH | 21.500 INCHES NOMINAL | | OVERALL WIDTH | 11.370 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY | | SPECIAL FEATURES | MATERIAL ALUMINUM ALLOY QQ-A-25018, 5052-H32; PRIME PER MIL-C-22750; PAINT USING FED-STD-595, COLOR NO. 26307, LIGHT GULL GRAY, MIL-C-83286 TY 1; HOLES TO BE FREE OF PAINT AND PRIMER | | SURFACE TREATMENT | PRIMER AND PAINT |
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