National Stock Number
5120-00-439-8988
National Stock Number (NSN) 5120-00-439-8988, or NIIN 004398988, (key set,socket head screw) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 5120015930159, 5120013677233.
There are 9 manufacturer part numbers associated with this NSN. 6 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 2 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 several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Feb 14, 2014. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPEFA114M0586. The total value of the awarded contracts has been US$ 109.50.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 16, 2008, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 17793. [A GROUP OF KEY, SOCKET HEAD SCREW HAVING DIFFERENT CHARACTERISTICS. FOR ITEMS WHICH ARE DESIGNED TO ACCOMMODATE INTERCHANGEABLE KEY BITS AND SCREWDRIVER BITS, USE SCREWDRIVER BIT SET AND HANDLE.]. 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 5120004398988 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.