National Stock Number
5120-00-239-0021
National Stock Number (NSN) 5120-00-239-0021, or NIIN 002390021, (socket,socket wrench) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 4 stock numbers: 5120015184485, 5120012428164, 5120001776781, 5120008537038.
There are 15 manufacturer part numbers associated with this NSN. 11 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 12 suppliers. Today, 9 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 5 suppliers are deemed design controlled or valid supply parts. ISO Group has a strong supply network for this NSN, with 18 sources of supply.
This part number has not been procured by the US Government in over 5 years.
This NSN is unique to one weapons system.
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 Apr 02, 1991, this NSN's acquisition method was noted as: Not established. Not established.
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 5120002390021 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.