National Stock Number
2990-01-598-0204
National Stock Number (NSN) 2990-01-598-0204, or NIIN 015980204, (radiator,heater,coolant,engine) was assigned June 28, 2011 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.
This NSN is unique to one weapons system.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jun 22, 2018, 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 annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). (NOTE: This code shall not be used when screening parts entering the inventory. It shall not be assigned in preference to or supersede any other AMSC.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 46156. [A PREDOMINANTLY METAL ITEM WHICH CAN CONSIST OF TWO INTERLOCKING CYLINDRICAL CASES. THE INNER CYLINDER ACCOMMODATES THE COMBUSTION, CHAMBER HEATER, COOLANT, ENGINE AND CAN BE EQUIPPED WITH RIBS TO ENHANCE THERMAL CONDUCTIVITY. THE HEAT RADIATING FROM THE COMBUSTION CHAMBER IS TRANSMITTED VIA THE WALL AND THE RIBS TO THE COOLANT FLOWING IN THE SPACE BETWEEN THE INNER AND OUTER CYLINDER. CONNECTORS FOR HOSES, TUBES AND ATTACHMENTS CAN BE INCLUDED. EXCLUDES:RADIATOR, VEHICULAR COMPARTMENT HEATER.]. 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 2990015980204 does not contain precious metals.
This information was last updated on Jul 01, 2025.