National Stock Number
4520-00-276-7834
National Stock Number (NSN) 4520-00-276-7834, or NIIN 002767834, (heater,ventilation,duct type) was assigned January 1, 1963 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, there are no suppliers that are 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) 07531. [A HEAT TRANSFERRING UNIT UTILIZING A SEPARATE SOURCE OF STEAM OR HOT WATER AS THE HEAT TRANSFER MEDIUM. IT CONSISTS OF FINNED PARALLEL TUBES JOINED TOGETHER BY A HEADER OR HEADERS AND IS DESIGNED FOR INSTALLATION IN THE DUCTS OF A FORCED AIR CIRCULATING SYSTEM. IT MAY BE PROVIDED WITH A FLANGED OUTER CASING TO FACILITATE MOUNTING OF THE UNIT IN PLANNED OR EXISTING DUCT WORK. CIRCULATION OF THE HEATED AIR IS ACHIEVED BY USE OF A BLOWER OR FAN NOT INTEGRAL WITH THE HEATING UNIT.]. 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 4520002767834 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.