National Stock Number
5340-14-522-1554
National Stock Number (NSN) 5340-14-522-1554, or NIIN 145221554, (locking device,slotted nut) 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 assigned to Item Name Code (INC) 53497. [A U SHAPE METALLIC ITEM DESIGNED TO LOCK A SLOTTED NUT ON A LOCKING SLEEVE GENERALLY USED FOR BEARING(S) MOUNTING. THE ITEM IS INSERTED IN ONE SLOT OF THE NUT AND IN THE SLEEVE SLOT AND FIXED BY MEANS OF A SCREW. WHEN LOCKED IN POSITION IT SECURES THE NUT FROM TURNING AND THE MOUNTING BEARING FROM LOOSENING.].
This information was last updated on Feb 04, 2026.