National Stock Number
2540-00-340-3393
National Stock Number (NSN) 2540-00-340-3393, or NIIN 003403393, (blower assembly,air ventilating) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NSN replaces 2 stock numbers: 2540006928845, 2540007700163.
There are 4 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are 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. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 2540003403393 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.