National Stock Number
                                            4120-01-552-0052
                                    
                                
                            
                            
                                National Stock Number (NSN) 4120-01-552-0052, or NIIN 015520052, (cooler,air,evaporative) was assigned June 1, 2007 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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 5 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers 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) 20341. [A SELF-CONTAINED UNIT DESIGNED TO PERFORM THE FUNCTIONS OF COOLING, FILTERING AND CIRCULATING FRESH AIR. IN OPERATION, FRESH AIR IS DRAWN INTO THE COOLER FROM AN OUTSIDE SOURCE, THROUGH WATER EVAPORATING FILTER PADS, BY A POWER DRIVEN FAN. THE TEMPERATURE OF THE AIR IS REDUCED BY THE PRINCIPLE OF EVAPORATIVE COOLING. THE AIR IS THEN FORCED THROUGH A DISCHARGE OPENING. MAY BE CONNECTED TO AN AIR DUCT SYSTEM. SEE ALSO AIR CONDITIONER.]. 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 4120015520052 does not contain precious metals. 
This NSN is associated to Schedule B 8415909000: parts, nesoi, of air conditioning machines. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 333415: air-conditioning and warm air heating equipment and commercial and industrial refrigeration equipment manufacturing. 
This information was last updated on Aug 01, 2025.