National Stock Number (NSN) 1005-01-541-8973, or NIIN 015418973, (base,rear sight) was assigned July 14, 2006 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. One of those 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, only one supplier is deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Feb 20, 2013. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPM7L413M1349. The total value of the awarded contracts has been US$ 1,377.52.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 03, 2013, this NSN's acquisition method was noted as: Acquire only from the prime contractor although the engineering data identifies the Commercial and Government Entity Code (CAGE) and part number of a source other than the prime contractor. The data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 50284. [AN ITEM SPECIFICALLY DESIGNED AS A FOUNDATION OR PART UPON WHICH ASSOCIATED PARTS, SUCH AS CROSS BLADE, SIGHT LEAF, OR APERTURE, FOR A GUNSIGHT ARE MOUNTED. IT IS ATTACHED TO THE RECEIVER OR GUN BARREL AND ESSENTIAL TO A CARBINE, MACHINE GUN, PISTOL, RIFLE OR THE LIKE WHEN AIMING.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1005015418973 does not contain precious metals.
This NSN is associated to Schedule B 9305996600: part and accessories of articles of headings 9301 to 9304, nesoi. The Schedule B End Use is listed as toys, games, and sporting goods. NAICS classification category 332994: small arms, ordnance, and ordnance accessories manufacturing.
This information was last updated on Aug 01, 2025.