National Stock Number
5120-01-437-1723
National Stock Number (NSN) 5120-01-437-1723, or NIIN 014371723, (adapter-extension,socket wrench) was assigned October 7, 1996 in the Federal Logistics Information System (FLIS). NIIN 014371723 was cancelled on January 2, 1999, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 17016. [A RIGID ITEM FOUR INCHES (101.6 MM) OR OVER IN LENGTH. 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; ADAPTER, SOCKET, CROWFOOT SOCKET WRENCH HEAD; AND ADAPTER, SOCKET WRENCH. EXCLUDES: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 5120014371723 does not contain precious metals.
This information was last updated on Aug 01, 2025.