National Stock Number
4320-99-428-4604
National Stock Number (NSN) 4320-99-428-4604, or NIIN 994284604, (cylinder block,hydraulic motor-pump) has an unknown assigned date. 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, 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.
This NSN is assigned to Item Name Code (INC) 61788. [A BASICALLY CYLINDRICAL ITEM WITH RADIAL OR AXIAL CYLINDER BORES EQUIDISTANT FROM EACH OTHER AND FROM THE SHAFT AXIS. IT IS DESIGNED TO HOUSE THE PISTONS OF A RADIAL OR AXIAL PISTONS MOTOR OR PUMP.].
This information was last updated on Oct 10, 2025.