National Stock Number
6540-01-165-4987
National Stock Number (NSN) 6540-01-165-4987, or NIIN 011654987, (rule,measuring,pupillary distanc) was assigned October 29, 1983 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 6515012463821, 6515011145485.
There are 5 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 5 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 4 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Apr 26, 2019. There have been 11 contracts issued for this part number, with 16 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 5 different suppliers. The last contract numbers awarded were: SPE2DS19V5681, SPE2DS18V079N, SPE2DS16V7166, SPE2DS16V3603, SPE2DS16V2337. The total value of the awarded contracts has been US$ 127.70.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
There has been a small 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 Dec 02, 2006, 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) 35199. [A GRADUATED MEASURING INSTRUMENT WITH EDGES AND ENDS SMOOTHLY POLISHED TO PREVENT INJURY TO THE PATIENT. IT IS USED FOR NASAL AND EYE MEASUREMENTS.]. 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 6540011654987 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.