National Stock Number
1660-00-437-3932
National Stock Number (NSN) 1660-00-437-3932, or NIIN 004373932, (duct,anti-icing) was assigned August 29, 1969 in the Federal Logistics Information System (FLIS). NIIN 004373932 was cancelled on March 2, 2008, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 1660002465911. This NSN replaces 1 stock number, 1660008754898.
There are 3 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 3 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is 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) 77777. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1660004373932 does not contain precious metals.
This information was last updated on Aug 01, 2025.