National Stock Number
2930-00-445-7181
National Stock Number (NSN) 2930-00-445-7181, or NIIN 004457181, (radiator,engine coolant) was assigned December 28, 1970 in the Federal Logistics Information System (FLIS). NIIN 004457181 was cancelled on March 3, 2005, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is 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.
This NSN is assigned to Item Name Code (INC) 22138. [A HEAT TRANSFER DEVICE HAVING A TANK(S) AND CORE(S) SPECIFICALLY DESIGNED TO REDUCE THE TEMPERATURE OF THE LIQUID IN AN INTERNAL COMBUSTION ENGINE COOLING SYSTEM. EXCLUDES ENGINE OIL COOLER RADIATORS.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 2930004457181 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.