National Stock Number
4520-01-260-2557
National Stock Number (NSN) 4520-01-260-2557, or NIIN 012602557, (furnace,warm air) has an unknown assigned date. NIIN 012602557 was cancelled on December 2, 1991, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4520012514217. 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 assigned to Item Name Code (INC) 09198. [A CENTRAL HEATING APPLIANCE CONSISTING OF A COMBUSTION CHAMBER AND SECONDARY HEAT TRANSFERRING SURFACES INCLOSED WITHIN A JACKET OR CASING, DESIGNED FOR BURNING VARIOUS TYPES OF FUEL. THE RESULTANT HEAT, BEING ABSORBED BY AIR CIRCULATED OVER THE HEATED SURFACES BY MEANS OF GRAVITY OR FORCED AIR CIRCULATION, MAY BE DISTRIBUTED TO VARIOUS ROOMS OF A BUILDING BY THE ATTACHMENT OF DUCTS AND/OR PIPES. SEE ALSO HEATER, SPACE.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4520012602557 does not contain precious metals.
This information was last updated on May 01, 2025.