National Stock Number
4320-01-179-8859
National Stock Number (NSN) 4320-01-179-8859, or NIIN 011798859, (head,hydraulic motor-pump) was assigned May 22, 1984 in the Federal Logistics Information System (FLIS). NIIN 011798859 was cancelled on November 2, 2000, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4810010647465. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 61765. [AN ITEM WHICH SERVES THE DUAL PURPOSE OF CLOSING THE HOUSING OF A HYDRAULIC PUMP OR MOTOR AND OF PROVIDING EXTERNAL PORT CONNECTION(S). IT HAS NO INTERNAL PORTS. FOR HEADS WITH INTEGRAL VALVE PLATES, SEE VALVE HEAD, HYDRAULIC MOTOR-PUMP.]. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4320011798859 does not contain precious metals.
This information was last updated on Aug 01, 2025.