National Stock Number
4520-00-509-0740
National Stock Number (NSN) 4520-00-509-0740, or NIIN 005090740, (heater,duct type,portable) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers 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, there are no suppliers 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 Apr 02, 1991, this NSN's acquisition method was noted as: Not established. Not established.
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 item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. Information is in the Hazardous Materials Information Resource System (HMIRS). NSN 4520005090740 does not contain precious metals.
This NSN is associated to Schedule B 7322900000: air heaters and hot air distributors, not electrically heated, incorporating a motor-driven fan or blower, and parts thereof, of iron or steel. The Schedule B End Use is listed as household appliances. NAICS classification category 333415: air-conditioning and warm air heating equipment and commercial and industrial refrigeration equipment manufacturing.
This information was last updated on Jul 01, 2025.