National Stock Number
5120-01-666-5331
National Stock Number (NSN) 5120-01-666-5331, or NIIN 016665331, (wrench,socket) was assigned September 11, 2017 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers 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 assigned to Item Name Code (INC) 03520. [A WRENCH CONSISTING OF ONE OR MORE SOCKETS, INTEGRAL WITH SHANK(S) OR BODY. IT MAY NOT BE FURNISHED WITH A HANDLE WHEN THE HANDLE IS REMOVABLE OR WHEN IT IS THE "DOUBLE END SOCKET" AND "SINGLE SOCKET BAR" TYPES, EACH DESIGNED FOR USE WITH THE OTHER OR SIMILAR ITEMS. EXCLUDES SOCKET, SOCKET WRENCH.]. 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 5120016665331 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 Aug 01, 2025.