National Stock Number
4520-00-203-1034
National Stock Number (NSN) 4520-00-203-1034, or NIIN 002031034, (heater,water,gas) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 002031034 was cancelled on December 15, 2017, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is unique to one weapons system.
This NSN is assigned to Item Name Code (INC) 07181. [A UNIT SPECIFICALLY DESIGNED FOR HEATING WATER BY A DIRECT FIRED METHOD, UTILIZING A GAS FUEL BURNED IN A COMBUSTION CHAMBER INCLOSED WITHIN ITSELF. MAY BE INCORPORATED WITH A TANK AS AN INTEGRAL OR AS A SEPARATE UNIT FOR STORAGE OF THE WATER SO HEATED.]. 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 4520002031034 does not contain precious metals.
This information was last updated on Jul 01, 2025.