National Stock Number
5310-21-921-4128
National Stock Number (NSN) 5310-21-921-4128, or NIIN 219214128, (nut,plain,cap) has an unknown assigned date. 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) 01855. [AN ITEM INTERNALLY THREADED FROM ONE END, AND COMPLETELY INCLOSED ON THE OPPOSITE END. THE OUTER PERIPHERY PARALLEL TO THE THREADED AXIS MAY BE SQUARE, CYLINDRICAL, HEXAGONAL, OCTAGONAL, OR DODECAGONAL AND TAPER TO A CONE OR DOME SHAPE ON THE CLOSED END. FOR LIKE ITEMS WHICH ARE STAMPED OR FORMED FROM SHEET STOCK, SEE NUT (1), STAMPED. FOR SIMILAR ITEMS WHICH ARE FLAT ON TOP AND BOTTOM SEE NUT (1), SLEEVE OR POST, ELECTRICAL-MECHANICAL EQUIPMENT.].
This information was last updated on Aug 06, 2025.