National Stock Number
4120-00-905-4225
National Stock Number (NSN) 4120-00-905-4225, or NIIN 009054225, (air conditioner) was assigned January 1, 1960 in the Federal Logistics Information System (FLIS). NIIN 009054225 was cancelled on November 25, 2003, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4120010317267. This NSN replaces 2 stock numbers: 4120009054223, 4120008832361.
There are 12 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 6 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 06486. [A SELF-CONTAINED UNIT DESIGNED TO PERFORM THE FUNCTIONS OF COOLING, CIRCULATING, FILTERING, DEHUMIDIFYING OR OTHERWISE PROCESSING OF AIR. IT MAY ALSO BE EQUIPPED TO PERFORM THE ADDITIONAL FUNCTIONS OF HEATING OR HUMIDIFYING. IT MAY BE THE AIR CYCLE TYPE USED IN AIRCRAFT OR THE VAPOR CYCLE TYPE APPLICABLE TO GROUND OR AEROSPACE EQUIPMENT. EXCLUDES ENVIRONMENTAL CONTROL UNIT, PERSONNEL, SELF-CONTAINED.]. 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 4120009054225 does not contain precious metals.
This information was last updated on Aug 01, 2025.