4520-01-256-3556

Find complete technical information, availability, and procurement data for: 4520-01-256-3556
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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

4520-01-256-3556

Item Name Code

17014

Assigment Date

06/04/1987 (39 years ago)

A device capable of producing heat from gas, liquid fuel, or an electrical heating element designed for permanent installation in sheet metal ducts of a forced air circulating system. It consists of (1) a finned, steel burner tube, a combustion air blower, a control panel, and a constant level fuel supply system or (2) a device having a heating element which when connected to an electrical source, directly imparts heat. It may be provided with a flanged outer casing to facilitate mounting in planned or existing duct work. Circulation of the heated air is achieved by use of a blower or fan not integral with the heating unit.

ventilation duct mounting type, air heat medium type, 28.000 inches nominal width, 14.500 inches nominal depth, ac current type

Product Characteristics

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

Mounting Type: ventilation duct
Heat Medium Type: air
Width: 28.000 inches nominal
Current Type: ac
Depth: 14.500 inches nominal
Operating Control Type: thermostatic
Current Rating In Amps: 7.3
Heating Element Type: electric nonimmersion
Heat Delivery Rate: 13989.2 british thermal unit
Voltage In Volts: 440.0
Extra Long Reference Number: tfzu-4.10-28x9-440/3/1/24-c1c5m3qq3t4u6zz2
Phase: three
Frequency In Hertz: 60.0
Height: 9.000 inches nominal
Reference Number Differentiating Characteristics: as differentiated by extra long reference number

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
210-19082-42 ITEM 1-63-2	Stationary Duct Type Heater

FAQs

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

What is the FSCG of the NSN 4520-01-256-3556?

The FSCG of the NSN 4520-01-256-3556 is 4520

Does the NSN 4520-01-256-3556 have a Schedule B code assigned?

Yes, the Schedule B code is 7322900000

Does NSN 4520-01-256-3556 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 4520-01-256-3556 contain precious materials?

Item does not contain precious metal.

Does NSN 4520-01-256-3556 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 4520-01-256-3556 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Thu, Jun 4, 1987