NSN 4520-22-125-4993, 4520221254993
HEATER,DUCT TYPE,PORTABLE

Federal Supply Classification: FSC 4520 - Space and Water Heating Equipment
National Item Identification Number: NIIN 221254993
Codification Country: Denmark
Item Name Code: INC 13028
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS^® Summary

National Stock Number 4520-22-125-4993

National Stock Number (NSN) 4520-22-125-4993, or NIIN 221254993, (heater,duct type,portable) has an unknown assigned date. This NSN does not replace any other NSNs.

There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

This NSN is assigned to Item Name Code (INC) 13028. [A HEATER EQUIPPED WITH INTEGRAL CONNECTION(S) FOR ATTACHING DUCT(S) TO DIRECT HEAT TO ENGINE SURFACE, RAILROAD CARS, WAREHOUSES, TENTS, AND THE LIKE. IT IS EQUIPPED WITH A BLOWER (FAN) AND MUST BE MOUNTED ON SKIDS, WHEELS, AND THE LIKE OR CAPABLE OF BEING HAND-CARRIED. EXCLUDES:HEATER, SPACE.].

This information was last updated on Oct 17, 2025.