National Stock Number
5120-01-657-5191
National Stock Number (NSN) 5120-01-657-5191, or NIIN 016575191, (socket,socket wrench) was assigned August 17, 2016 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.
This part number has not been procured by the US Government in over 5 years.
This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 30, 2016, this NSN's acquisition method was noted as: Acquire only from the prime contractor although the engineering data identifies the Commercial and Government Entity Code (CAGE) and part number of a source other than the prime contractor. The rights to use the data needed to purchase this part from additional sources are not owned by the Government and cannot be purchased. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 03518. [AN ITEM HAVING AN INTERNAL DRIVE AT ONE END MADE TO FIT INTO THE EXTERNAL DRIVE END OF A SOCKET WRENCH HANDLE, TORQUE WRENCH, OR POWER DRIVEN TOOL. THE OPPOSITE END CONSISTS OF VARIOUS INTERNAL WRENCH SHAPES SUCH AS HEXAGON OR SQUARE. IT MAY INCLUDE AN INTEGRAL UNIVERSAL JOINT.]. 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 5120016575191 does not contain precious metals.
This NSN is associated to Schedule B 8204200000: socket wrenches with or without handles, drives and extensions, parts, base metal. The Schedule B End Use is listed as photo, service industry machinery.
This information was last updated on Jul 01, 2025.