National Stock Number
4320-21-912-4139
National Stock Number (NSN) 4320-21-912-4139, or NIIN 219124139, (pump,axial pistons) has an unknown assigned date. This NSN replaces 1 stock number, 5310015586538.
There are 2 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 one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Sep 13, 2017. There have been 17 contracts issued for this part number, with 17 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 4 different suppliers. The last contract numbers awarded were: SPE7M117P8276, SPE7M115M5357, SPE7M015M0888, SPE7M015M0625, SPE7M015M0625. The total value of the awarded contracts has been US$ 153,883.94.
This NSN is fairly common among different weapons systems, belonging to 20 different platforms.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 14791. [A POSITIVE DISPLACEMENT DEVICE WHICH UTILIZES THE RECIPROCATING MOTION OF A MULTIPLE NUMBER OF PARALLEL PISTONS ARRANGED AXIALLY IN A CYLINDER BARREL AS A MEANS OF TRANSFERRING A LIQUID FROM ONE PLACE TO ANOTHER. THE PISTONS ARE ACTUATED BY REVOLVING THE CYLINDER BARREL AT AN ANGLE TO THE DRIVE SHAFT AXIS OR BY A TILTING BOX WHEN THE CYLINDER BARREL REVOLVES ON THE DRIVE SHAFT. THE PISTON DISPLACEMENT MAY BE FIXED OR VARIABLE. IT IS DESIGNED TO BE DRIVEN BY A PRIME MOVER WHICH IS NOT AN INTEGRAL PART OF THE PUMP.].
This information was last updated on Aug 06, 2025.