National Stock Number
5310-12-139-9563
National Stock Number (NSN) 5310-12-139-9563, or NIIN 121399563, (nut,plain,knurled) has an unknown assigned date. NIIN 121399563 was cancelled on January 2, 2013, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 15886. [A NUT, ROUND IN SHAPE, HAVING ALL OR PART OF ITS OUTER SURFACE KNURLED. IT MAY HAVE PROVISIONS FOR EXTERNAL WRENCHING. FOR ITEMS HAVING A THICKNESS (OR HEIGHT) EXCEEDING TWO TIMES THE OUTSIDE DIAMETER, USE POST, ELECTRICAL-MECHANICAL EQUIPMENT. SEE ALSO NUT (1), PLAIN, ROUND. (WHEN HEIGHT OR THICKNESS, AND/OR OUTSIDE DIAMETER IS DESIGNATED AS A TOLERANCE DIMENSION, THE MAXIMUM DIMENSION WILL BE USED TO DETERMINE COMPLIANCE).].
This information was last updated on Nov 12, 2025.