National Stock Number
4140-01-398-1631
National Stock Number (NSN) 4140-01-398-1631, or NIIN 013981631, (blower,exhaust) was assigned October 26, 1994 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier 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) 37351. [A DEVICE CONSISTING OF A STRUCTURAL FRAME, FAN AND MOTOR, WITH A STEM OR NOZZLE. IT IS INTENDED FOR PURGING AIRCRAFT FUEL TANKS WHILE INTERNAL MAINTENANCE IS BEING PERFORMED.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4140013981631 does not contain precious metals.
This information was last updated on Aug 01, 2025.