National Stock Number
5120-00-198-5401
National Stock Number (NSN) 5120-00-198-5401, or NIIN 001985401, (key,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 19 stock numbers. Five of the National Stock Numbers that it replaces are: 5120010385814, 5120001851674, 5315007972259, 5120008987018, 5120007661762.
There are 24 manufacturer part numbers associated with this NSN. 10 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 22 suppliers. Today, 16 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 12 suppliers are deemed design controlled or valid supply parts. ISO Group has a strong supply network for this NSN, with 11 sources of supply.
This part number has not been procured by the US Government in over 5 years.
There has been a small amount of 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 Aug 21, 2020, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 03519. [A HAND TOOL DESIGNED TO IMPART A ROTARY MOVEMENT OF FORCE FOR INSTALLING OR REMOVING SOCKET SCREW PRODUCTS. EXCLUDES:WRENCH, DRAIN PLUG; AND WRENCH, BUNG.]. 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 5120001985401 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.