National Stock Number
5120-99-617-1931
National Stock Number (NSN) 5120-99-617-1931, or NIIN 996171931, (ratchet head,socket wrench handle) has an unknown assigned date. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated 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, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is unique to one weapons system.
This NSN is assigned to Item Name Code (INC) 18872. [A REVERSIBLE RATCHETING MECHANISM HAVING A SQUARE EXTERNAL END DESIGNED TO FIT INTO THE INTERNAL END OF A WRENCH SOCKET OR ATTACHMENT, AND HAS PROVISIONS FOR A ROUND BAR GRIP, BUT DOES NOT INCLUDE THE BAR. WHEN FURNISHED WITH A BAR, SEE HANDLE, SOCKET WRENCH. EXCLUDES:RATCHET ATTACHMENT, SOCKET WRENCH.].
This information was last updated on Aug 11, 2025.