National Stock Number
4520-01-646-3534
National Stock Number (NSN) 4520-01-646-3534, or NIIN 016463534, (heater,water,steam and electric) was assigned July 20, 2015 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 13 manufacturer part numbers 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.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 3,753. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 06, 2016, 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 data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 20036. [A UNIT SPECIFICALLY DESIGNED TO HEAT WATER IN A STORAGE TANK BY MEANS OF A COIL THAT RECEIVES STEAM FROM ANOTHER SOURCE, AND, IN ADDITION IS EQUIPPED WITH AUXILIARY ELECTRIC HEATING ELEMENT(S).]. 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 4520016463534 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.