National Stock Number
2990-01-669-3116
National Stock Number (NSN) 2990-01-669-3116, or NIIN 016693116, (heater,coolant,engine) was assigned January 4, 2018 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 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 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 2990016693116 does not contain precious metals.
This NSN is associated to Schedule B 8412909080: parts of engines and motors, nesoi. The Schedule B End Use is listed as industrial engines. NAICS classification category 333111: farm machinery and equipment manufacturing.
This information was last updated on Aug 01, 2025.