National Stock Number
4520-01-033-1972
National Stock Number (NSN) 4520-01-033-1972, or NIIN 010331972, (heater,convection,steam-hot wate) was assigned December 31, 1976 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.
There are 2 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 1991, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 16506. [A HEAT TRANSFERRING UNIT, INCLOSED IN A CABINET, DESIGNED TO WARM A STREAM OF AIR BY CONVECTION AS IT CIRCULATES OVER THE HEATING ELEMENTS RATHER THAN BY DIRECT RADIATION. EXCLUDES:RADIATOR, HEATING.]. 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 4520010331972 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.