National Stock Number
4140-01-688-4637
National Stock Number (NSN) 4140-01-688-4637, or NIIN 016884637, (fan,crossflow) was assigned May 18, 2020 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on May 19, 2020, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 35372. [A NON-POSITIVE DISPLACEMENT MECHANICAL DEVICE HAVING A RADIAL FAN INPELLER INCLOSED WITHIN A DRUM TYPE HOUSING. IT IS DESIGNED TO MOVE FREE-FLOWING AIR OVER A WIDE RANGE OF VOLUMES AT LOW PRESSURES. THE DIRECTION OF AIR FLOW FOR BOTH INTAKE AND OUTLET IS PERPENDICULAR TO THE AXIS OF THE IMPELLER. IT IS DESIGNED TO BE BUILT INTO CEILINGS, WALLS, CONTROL CABINETS AND THE LIKE.INC 35372 CANCELLED ON 021903. IT WAS AN (ALL EXCEPT USA) BUT CHANGED TO GENERAL USE AND REINSTATED ON 01052018.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4140016884637 does not contain precious metals.
This information was last updated on May 01, 2025.