National Stock Number
                                            4130-01-022-2522
                                    
                                
                            
                            
                                National Stock Number (NSN) 4130-01-022-2522, or NIIN 010222522, (filtering pad,air cooler) was assigned May 27, 1976 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. 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 Sep 02, 2006, this NSN's acquisition method was noted as: Acquire only from the prime contractor although the engineering data identifies the Commercial and Government Entity Code (CAGE) and part number of a source other than the prime contractor.  The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5. 
This NSN is assigned to Item Name Code (INC) 61756. [A REPLACEABLE DEVICE DESIGNED TO ADD MOISTURE AND REMOVE DUST, POLLEN OR OTHER FOREIGN MATTER FROM THE AIR PASSING THROUGH IT. THE REMOVAL OF PARTICLES AND THE COOLING ACTION ARE ACCOMPLISHED BY POROUS, FIBROUS OR SHREDDED MATERIAL (METALLIC OR NON-METALLIC) WHICH IS SUITABLE FOR MOISTURE SATURATION, LOOSELY WOVEN OR MATTED, THE SHAPE OF WHICH IS MAINTAINED BY STIFFENING OR BINDING MATERIAL. IT IS DESIGNED TO FIT INTO A COOLER, AIR, EVAPORATIVE OR VENTILATING SYSTEM WHICH HAS RETAINING DEVICES. IT MAY BE FURNISHED IN A FRAME OR IN A CONTINOUS LENGTH. EXCLUDES:FILTER ELEMENT, AIR CONDITIONING.]. 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 4130010222522 contains an unknown precious metal. 
This NSN is associated to Schedule B 8421290065: filtering or purifying machinery and apparatus for liquids,  nesoi. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 333999: all other miscellaneous general purpose machinery manufacturing. 
This information was last updated on Aug 01, 2025.