National Stock Number
4520-00-273-1236
National Stock Number (NSN) 4520-00-273-1236, or NIIN 002731236, (cap,flue) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). NIIN 002731236 was cancelled on October 2, 2004, with a cancelled status of "Item is Cancelled WITHOUT Replacement." 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 assigned to Item Name Code (INC) 15680. [AN ITEM DESIGNED FOR ATTACHING TO THE TOP OF A CHIMMEY OR SMOKE STACK TO ELIMINATE BACK DRAFT AND CREATE A PARTIAL VACUUM.]. 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 4520002731236 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.