National Stock Number
4320-00-993-1291
National Stock Number (NSN) 4320-00-993-1291, or NIIN 009931291, (pump,reciprocating,direct acting) was assigned January 1, 1962 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) 14860. [A POSITIVE DISPLACEMENT DEVICE WHICH UTILIZES THE RECIPROCATING MOTION OF A PISTON OR PLUNGER IN AN ENCLOSURE, DIRECTLY CONNECTED TO A STEAM ACTIVATED POWER PISTON AND OPERATING AS A UNIT INDEPENDENT OF ANY CRANK MOVEMENT, AS A MEANS OF TRANSFERRING A LIQUID FROM ONE PLACE TO ANOTHER.]. 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 4320009931291 contains an unknown precious metal.
This NSN is associated to Schedule B 8413500090: reciprocating positive displacement pumps, nesoi. The Schedule B End Use is listed as industrial engines. NAICS classification category 333911: pump and pumping equipment manufacturing.
This information was last updated on Jul 01, 2025.