National Stock Number
5310-01-331-2250
National Stock Number (NSN) 5310-01-331-2250, or NIIN 013312250, (locknut,rapid alignment) has an unknown assigned date. NIIN 013312250 was cancelled on December 11, 1999, 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 are no manufacturer part numbers associated to this NSN.
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).]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5310013312250 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.