National Stock Number
5310-00-137-3191
National Stock Number (NSN) 5310-00-137-3191, or NIIN 001373191, (nut,self-locking,extended washer,double hexagon) was assigned August 9, 1971 in the Federal Logistics Information System (FLIS). NIIN 001373191 was cancelled on June 2, 1999, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 5310011040527. 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.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.
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.]. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5310001373191 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.