National Stock Number
4520-01-169-0477
National Stock Number (NSN) 4520-01-169-0477, or NIIN 011690477, (pipe,air conditioning-heating) was assigned December 30, 1983 in the Federal Logistics Information System (FLIS). NIIN 011690477 was cancelled on April 30, 2010, with a cancelled status of "Item is Cancelled - Inactive." 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) 15681. [A SHAPED PRODUCT OF SHEET METAL; ROUND, RECTANGULAR, OR SQUARE IN CROSS-SECTIONAL SHAPE. IT IS UNIFORM THROUGHOUT ITS LENGTH. USED TO CONDUCT AIR OR GAS FUMES FROM ONE AREA TO ANOTHER.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4520011690477 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.