National Stock Number
5305-99-120-1821
National Stock Number (NSN) 5305-99-120-1821, or NIIN 991201821, (screw,drive) has an unknown assigned date. This NSN does not replace any other NSNs.
There are 39 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 20 suppliers. Today, 11 suppliers are listed as Active suppliers 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 unique to one weapons system.
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) 15896. [A HARDENED CYLINDRICAL FASTENER WITH MULTIPLE SPIRAL FLUTES ON ITS SHANK. IT ALSO HAS AN END SMALLER IN DIAMETER THAN THE OUTSIDE DIAMETER OF THE SPIRAL FLUTES, WHICH ACTS AS A PILOT WHEN DRIVEN INTO A DRILLED HOLE.].
This information was last updated on Aug 08, 2025.