DLMS™ Summary National Stock Number 1010-12-353-8683 National Stock Number (NSN) 1010-12-353-8683, or NIIN 123538683, (sight,rear) has an unknown assigned date. NIIN 123538683 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 no manufacturer part numbers associated to this NSN. 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 23, 2017.