National Stock Number
5120-00-242-3139
National Stock Number (NSN) 5120-00-242-3139, or NIIN 002423139, (extension,socket wrench) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 002423139 was cancelled on November 2, 2016, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 5120014371747. This NSN replaces 1 stock number, 5120003575297.
There are 13 manufacturer part numbers associated with this NSN. 8 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts. ISO Group has a strong supply network for this NSN, with 21 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 01, 2020, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 17018. [AN ATTACHMENT FOR EXTENDING THE DRIVE LENGTH OF SOCKET WRENCHES OR HANDLES. THE BODY OF THE ITEM MAY BE EITHER A COIL SPRING OR A SOLID BAR. THE ITEMS PERMIT THE CONNECTION OF ENDS THAT ARE DESIGNED FOR DIRECT MATING TO EACH OTHER. SEE ALSO ADAPTER, SOCKET WRENCH; UNIVERSAL JOINT, SOCKET WRENCH ATTACHMENT; AND ADAPTER, SOCKET, CROWFOOT SOCKET WRENCH HEAD.]. 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 5120002423139 does not contain precious metals.
This information was last updated on Jul 01, 2025.