National Stock Number
4320-01-214-3925
National Stock Number (NSN) 4320-01-214-3925, or NIIN 012143925, (gear rotor set,rotary pump) was assigned August 9, 1985 in the Federal Logistics Information System (FLIS). NIIN 012143925 was cancelled on January 2, 2006, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4320014605980. This NSN does not replace any other NSNs.
There are 4 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, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 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) 61764. [A PUMP ROTOR OR IMPELLER CONSISTING OF TWO GEARS, THE OUTER GEAR HAVING INTERNAL TEETH (LOBES) AND THE INNER GEAR HAVING EXTERNAL TEETH (LOBES). THE INNER GEAR HAS ONE OR TWO TEETH LESS THAN THE OUTER GEAR, AND IS MOUNTED TO MESH ECCENTRIC WITH THE OUTER GEAR. THE SPACE BETWEEN THE TEETH OF THE TWO MESHING GEARS CREATES A POSITIVE DISPLACEMENT OF FLUIDS FROM THE INLET PORT TO THE OUTLET PORT OF THE ROTARY PUMP.]. 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 4320012143925 does not contain precious metals.
This information was last updated on Aug 01, 2025.