National Stock Number
4520-01-246-4166
National Stock Number (NSN) 4520-01-246-4166, or NIIN 012464166, (heater,duct type,stationary) was assigned December 13, 1986 in the Federal Logistics Information System (FLIS). NIIN 012464166 was cancelled on April 2, 2016, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 01, 2020, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 17014. [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.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4520012464166 does not contain precious metals.
This information was last updated on May 01, 2025.