National Stock Number
5310-00-449-0157
National Stock Number (NSN) 5310-00-449-0157, or NIIN 004490157, (nut,self-locking,castellated,hexagon) was assigned May 13, 1970 in the Federal Logistics Information System (FLIS). NIIN 004490157 was cancelled on October 2, 1996, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 5310001682978. 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) 29725. [A NUT HAVING 6 FLAT SIDES, FLAT ON THE BOTTOM AND HAVING A SLOTTED CYLINDRICAL OR DOME SHAPED UPPER PORTION. AN INTEGRAL FEATURE IS INCORPORATED FOR LOCKING ON THE THREADS OF A MATING MEMBER. THE SLOTS WHEN USED IN CONJUNCTION WITH A SOLID OR SPLIT (COTTER) PIN, ACT AS AN EXTRA "FAIL SAFE" FEATURE IN CRITICAL APPLICATIONS. EXCLUDES:NUT (1), SELF-LOCKING, SLOTTED, HEXAGON.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5310004490157 contains silver.
This information was last updated on Jul 01, 2025.