DLMS™ Summary National Stock Number 1015-99-963-5419 National Stock Number (NSN) 1015-99-963-5419, or NIIN 999635419, (sight,rear) has an unknown assigned date. NIIN 999635419 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 are 2 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 2 suppliers. Today, 2 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 assigned to Item Name Code (INC) 22228. [AN ITEM ATTACHED TO THE BREECH END AND INTEGRAL TO A CARBINE, MACHINE GUN, PISTOL, RIFLE, OR THE LIKE. IT MAY BE A FIXED OR ADJUSTABLE CROSS BLADE WITH A U-OR V-SHAPED NOTCH OR APERTURE, OR IT MAY HAVE ELEVATION AND WINDAGE ADJUSTMENT KNOBS, SLIDES, AND GRADUATED SCALES AND BE PROVIDED WITH APERTURE DISKS.]. This information was last updated on Jan 16, 2017.