National Stock Number
2990-01-240-3161
National Stock Number (NSN) 2990-01-240-3161, or NIIN 012403161, (heater,coolant,engine) was assigned September 12, 1986 in the Federal Logistics Information System (FLIS). NIIN 012403161 was cancelled on August 2, 2001, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 2990006504575. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN. 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) 11517. [A HEATER DESIGNED TO BURN FUEL OR UTILIZE ELECTRIC POWER WHICH APPLIES HEAT THROUGH DIRECT CONNECTION TO THE ENGINE COOLANT SYSTEM TO FACILITATE STARTING IN LOW TEMPERATURES; MAY ALSO SUPPLY HEATED COOLANT TO HEAT EXCHANGERS. MUST HAVE MOUNTING FACILITIES. SEE ALSO HEATER, AIR DUCT, ENGINE AND HEATER, AIR DUCT-COOLANT, ENGINE.]. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 2990012403161 does not contain precious metals.
This information was last updated on Aug 01, 2025.