National Stock Number
5120-01-604-3521
National Stock Number (NSN) 5120-01-604-3521, or NIIN 016043521, (adapter,socket wrench) was assigned April 3, 2012 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.
There are 5 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
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 04, 2014, 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 5120016043521 does not contain precious metals.
This information was last updated on Jul 01, 2025.