National Stock Number
5840-00-688-6986
National Stock Number (NSN) 4420-00-688-6986, or NIIN 006886986, (heat exchanger,fluid to air) was assigned January 1, 1961 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, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is 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 Jul 02, 2005, 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) 51905. [A HEAT TRANSFER DEVICE DESIGNED TO LOWER THE TEMPERATURE OF A FLUID THROUGH AIRFLOW. MAY BE USED IN AIR CONDITIONING SYSTEMS, DRIVE MECHANISMS, AND THE LIKE. SEE ALSO HEAT EXCHANGER, AIR TO AIR, AIRCRAFT AND HEAT EXCHANGER, AIR TO WATER, AIRCRAFT.]. 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 4420006886986 does not contain precious metals.
This information was last updated on Jul 01, 2025.