National Item Identification Number
00-340-2669
003402669
4520-00-340-2669
4520003402669
National Stock Number
Item Name
DAMPER,FLUE
Federal Supply Class
4520
Description
A cast iron or sheet metal plate designed to be installed in a boiler, heater, stove, or furnace flue pipe to control the draft, and/or in an air duct to control the passage of air. Excludes VALVE, BUTTERFLY.
Commercial and Government Entity Code (Supplier Data)
81361
Reference Numbers (Part Numbers)
B5-19-926
Required Categories
OVERALL DIAMETER
OVERALL THICKNESS
MATERIAL
SURFACE TREATMENT
SHAPE
DIAMETE
Required Description
4.105 INCHES MINIMUM AND
4.135 INCHES MAXIMUM
0.063 INCHES NOMINAL
ALUMINUM A