National Stock Number
4920-01-644-1787
National Stock Number (NSN) 4920-01-644-1787, or NIIN 016441787, (test set,hydraulic fluid,aircraf) was assigned April 23, 2015 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, there are no suppliers 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. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 31, 2017, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 53442. [A SYSTEM DESIGNED TO PROVIDE BOTH HYDRAULIC POWER TO AND PERFORM VARIOUS FUNCTIONAL AND OPERATIONAL CHECKS OF THE AIRCRAFT HYDRAULICS SYSTEMS WITHOUT THE NECESSITY OF STARTING AND RUNNING THE AIRCRAFT'S ENGINES.]. 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 4920016441787 contains an unknown precious metal.
This NSN is associated to Schedule B 9032810080: hydraulic and pneumatic instruments and apparatus except industrial process control. The Schedule B End Use is listed as measuring, testing, control instruments. NAICS classification category 334513: instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables.
This information was last updated on Jun 01, 2025.