National Stock Number
4520-01-181-9369
National Stock Number (NSN) 4520-01-181-9369, or NIIN 011819369, (pipe,air conditioning-heating) was assigned June 18, 1984 in the Federal Logistics Information System (FLIS). NIIN 011819369 was cancelled on November 2, 2000, 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) 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 4520011819369 does not contain precious metals.
This information was last updated on Jun 01, 2025.