National Stock Number
4120-01-249-1431
National Stock Number (NSN) 4120-01-249-1431, or NIIN 012491431, (air conditioner) was assigned February 6, 1987 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4520013902199.
There are 2 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 6 suppliers. Today, 6 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers 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 Jan 02, 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. 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) 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 4120012491431 does not contain precious metals.
This information was last updated on Apr 01, 2025.