National Stock Number
5310-00-021-8456
National Stock Number (NSN) 5310-00-021-8456, or NIIN 000218456, (nut,plain,castellated,hexagon) has an unknown assigned date. NIIN 000218456 was cancelled on September 19, 1997, 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) 01854. [A NUT HAVING 6 FLAT SIDES, FLAT ON THE BOTTOM AND HAVING A SLOTTED CYLINDRICAL OR DOME SHAPED UPPER PORTION. IT IS DESIGNED TO PROVIDE POSITIVE LOCKING WHEN USED WITH A SOLID OR SPLIT (COTTER) PIN. EXCLUDES:NUT (1), PLAIN, SLOTTED, HEXAGON.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5310000218456 does not contain precious metals.
This information was last updated on Jul 01, 2025.