National Stock Number (NSN) 4520-01-196-1851, or NIIN 011961851, (heater,water,liquid fuel) was assigned December 9, 1984 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4520012118554.
There is only one manufacturer part number associated with this NSN. One of those 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, 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, with the most recent procurement date of Apr 12, 2016. There have been 10 contracts issued for this part number, with 10 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 6 different suppliers. The last contract numbers awarded were: SPE8E816V1190, SPM8E813V0469, SPM8E813V0017, SPM8E812V0792, SPM8E812V0726. The total value of the awarded contracts has been US$ 146,126.82.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 02, 2006, 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 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) 28060. [AN ITEM DESIGNED FOR HEATING WATER BY A DIRECT-FIRED METHOD, USING A LIQUID FUEL BURNED IN A COMBUSTION CHAMBER INCLOSED WITHIN ITSELF. IT MAY BE CAPABLE OF USING MORE THAN ONE TYPE OF FUEL, SUCH AS GASOLINE, OIL, KEROSINE, OR JET FUEL. IT MAY BE INCORPORATED WITH A TANK AS AN INTEGRAL OR AS A SEPARATE UNIT FOR STORAGE OF THE WATER SO HEATED. FOR ITEMS THAT USE LIQUEFIED PETROLEUM GAS, SEE HEATER, WATER, GAS. EXCLUDES:SIDEARM HEATERS.]. 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 4520011961851 does not contain precious metals.
This NSN is associated to Schedule B 8419190080: instantaneous or storage water heaters, nesoi, nonelectric. The Schedule B End Use is listed as household appliances. NAICS classification category 335228: other major household appliance manufacturing.
This information was last updated on Jul 01, 2025.