National Stock Number (NSN) 6640-01-560-2543, or NIIN 015602543, (paper,lens) was assigned January 23, 2008 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 5 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 155 contracts issued for this part number, with 176 awards given. There is heavy competition for this NSN. The US Government has awarded contracts to 22 different suppliers. The last contract numbers awarded were: SPE2DS25V063N, SPE2DS25V063N, SPE2DS25V062G, SPE2DS25V063N, SPE2DS25V054E. The total value of the awarded contracts has been US$ 27,595.48.
This NSN is fairly common among different weapons systems, belonging to 17 different platforms.
This national stock number is in high demand. 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 16, 2015, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 03750. [A TISSUE PAPER WHICH IS SOFT AND CLEAN, USED TO WRAP OR CLEAN ALL TYPES OF LENSES INCLUDING THOSE OF CAMERAS AND OPTICAL INSTRUMENTS. IT WILL NOT POLISH THEM, BUT MAY BE USED WITH A CLEANING FLUID.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. Information is in the Hazardous Materials Information Resource System (HMIRS). NSN 6640015602543 does not contain precious metals.
This NSN is associated to Schedule B 4818200040: handkerchiefs and cleansing or facial tissues of paper pulp, paper, cellulose wadding or webs of cellulose fibers. The Schedule B End Use is listed as other consumer nondurables. NAICS classification category 322291: sanitary paper product manufacturing.
This information was last updated on Aug 01, 2025.