National Stock Number
6540-01-375-9031
National Stock Number (NSN) 6540-01-375-9031, or NIIN 013759031, (stereoscope,vision testing) was assigned May 24, 1993 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 6540002998048.
There are 3 manufacturer part numbers associated with this NSN. One of those 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, 2 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number is actively being procured by the US Government, with procurement history within the last 90 days. There have been 83 contracts issued for this part number, with 80 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE2DS25V074K, SPE2DS25V1762, SPE2DS24V084A, SPE2DS24V6978, SPE2DS24V1604. The total value of the awarded contracts has been US$ 924,809.00.
This NSN is fairly common among different weapons systems, belonging to 11 different platforms.
There has been a moderate amount of 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 Nov 19, 2019, 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) 14002. [AN ITEM USED TO TEST FOR DEFICIENCIES IN VISUAL ACUITY, MUSCLE BALANCE, FUSION AND DEPTH PERCEPTION AT NEAR AND FAR DISTANCES.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6540013759031 does not contain precious metals.
This NSN is associated to Schedule B 9018500000: other ophthalmic instruments and appliances and parts and accessories. The Schedule B End Use is listed as medicinal equipment. NAICS classification category 339112: surgical and medical instrument manufacturing.
This information was last updated on Jul 01, 2025.