National Stock Number
5310-01-331-1275
National Stock Number (NSN) 5310-01-331-1275, or NIIN 013311275, (nut,self-locking,double hexagon) was assigned December 14, 1990 in the Federal Logistics Information System (FLIS). NIIN 013311275 was cancelled on June 2, 1995, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 5310012542571. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN. ISO Group has several sources of supply for 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) 05276. [A NUT HAVING 12 DRIVE POINTS AND 24 SIDES. THE BEARING SURFACE MAY BE WASHER FACED. AN INTEGRAL LOCKING FEATURE IS INCORPORATED IN THE DESIGN OF THE HEAD OR IN THE THREADS.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5310013311275 contains silver.
This information was last updated on Jun 01, 2025.