National Stock Number
5120-01-399-9754
National Stock Number (NSN) 5120-01-399-9754, or NIIN 013999754, (adapter,socket wrench) was assigned December 7, 1994 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 5120015427445.
There are 4 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 4 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 19, 2020, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 03353. [A RIGID ADAPTER LESS THAN FOUR INCHES (101.6 MM) LONG USED TO CONNECT SOCKETS TO HANDLES, POWER TOOLS, OR TO OTHER ATTACHMENTS WHICH ARE NOT DESIGNED FOR DIRECT MATING TO EACH OTHER. SEE ALSO RATCHET ATTACHMENT, SOCKET WRENCH; UNIVERSAL JOINT, SOCKET WRENCH ATTACHMENT; EXTENSION, SOCKET WRENCH; AND ADAPTER-EXTENSION, SOCKET WRENCH; EXCLUDES:ADAPTER, SOCKET, CROWFOOT SOCKET WRENCH HEAD; SOCKET, WRENCH, REFRIGERATION VALVE STEM; AND HOLDER, SCREWDRIVER BIT, FEMALE SQUARE DRIVE.]. 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 5120013999754 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.