4520-01-040-0898

Find complete technical information, availability, and procurement data for: 4520-01-040-0898
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Federal Supply Group

Plumbing, Heating, and Waste Disposal Equipment

Federal Supply Classification

4520 Space and Water Heating Equipment

National Stock Number

4520-01-040-0898

Item Name Code

15646

Assigment Date

04/30/1977 (49 years ago)

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.

1.750 inches nominal overall thickness, 8.000 inches nominal overall diameter, 3.500 inches nominal overall height, manual operation method, inserted center shaft mounting method

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Overall Height: 3.500 inches nominal
Overall Diameter: 8.000 inches nominal
Mounting Method: inserted center shaft
Overall Thickness: 1.750 inches nominal
Operation Method: manual
Material: steel
Surface Treatment: paint
Shape: round

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
4-8IN	Flue Damper

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4520-01-040-0898?

The FSCG of the NSN 4520-01-040-0898 is 4520

Does NSN 4520-01-040-0898 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 4520-01-040-0898 contain precious materials?

Precious metal content is unknown

Does NSN 4520-01-040-0898 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 4520-01-040-0898 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Sat, Apr 30, 1977