National Stock Number
5310-66-133-7877
National Stock Number (NSN) 5310-66-133-7877, or NIIN 661337877, (nut,self-locking,hexagon) has an unknown assigned date. NIIN 661337877 was cancelled on June 9, 2009, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 5310014902022. 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) 05277. [A NUT HAVING A FLAT BOTTOM AND 6 SIDES. AN INTEGRAL FEATURE IS INCORPORATED FOR LOCKING ON THE THREADS OF A MATING MEMBER. EXCLUDES:NUT (1), SELF-LOCKING, CAP.].
This information was last updated on Aug 13, 2025.