National Stock Number
5310-01-264-0918
National Stock Number (NSN) 5310-01-264-0918, or NIIN 012640918, (locknut,rapid alignment) was assigned September 24, 1987 in the Federal Logistics Information System (FLIS). NIIN 012640918 was cancelled on May 1, 2010, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. 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, only one supplier is 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 assigned to Item Name Code (INC) 40079. [AN ITEM HAVING INTERNAL THREADS DESIGNED TO MATE WITH AN EXTERNAL THREAD. THE ITEM IS TWO PERMANENTLY JOINED, INDEPENDENTLY ROTATABLE SLOTTED NUTS. IN THE OPEN STATE (SLOTS ALIGNED), THE ITEM CAN BE READILY SLIPPED ONTO OR OFF A THREADED ROD, BOLT, OR THE LIKE. IN THE CLOSED STATE (180 DEGREES BETWEEN NUT SLOTS), THE NUT LOCKS ONTO THE EXTERNAL THREAD. THE SLOTS RUN THE ENTIRE HEIGHT OF THE NUT. EXCLUDES:NUT, PLAIN, SLOTTED (AS MODIFIED); NUT, SELF-LOCKING, SLOTTED (AS MODIFIED).]. 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 5310012640918 does not contain precious metals.
This information was last updated on Aug 01, 2025.