National Stock Number
5310-00-855-2517
National Stock Number (NSN) 5310-00-855-2517, or NIIN 008552517, (nut,self-locking,extended washer,double hexagon) was assigned January 1, 1962 in the Federal Logistics Information System (FLIS). NIIN 008552517 was cancelled on July 2, 1997, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 5310007830075. This NSN replaces 4 stock numbers: 5310010116539, 5310008212773, 5310001156821, 5310005318832.
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) 29729. [A NUT HAVING 12 DRIVE POINTS, 24 SIDES, AND AN INTEGRAL WASHER WHICH EXTENDS BEYOND THE POINTS OR PERIPHERY. AN INTEGRAL FEATURE IS INCORPORATED FOR LOCKING ON THE THREADS OF A MATING MEMBER.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5310008552517 contains silver.
This information was last updated on Aug 01, 2025.