National Stock Number
1240-01-654-6171
National Stock Number (NSN) 1240-01-654-6171, or NIIN 016546171, (filter,light,telescopic instrume) was assigned May 4, 2016 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated 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.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 13347. [AN ITEM HAVING TWO PLANE-PARALLEL SURFACES AND USED IN THE TELESCOPIC SYSTEM OF AN OPTICAL INSTRUMENT TO MODIFY THE DENSITY OR SPECTRAL INTENSITY OF LIGHT BY ABSORPTION. SEVERAL FILTERS HAVING VARIED CHARACTERISTICS ARE USUALLY MOUNTED IN SUCH A MANNER THAT ANY SELECTED FILTER MAY BE MOVED IN OR OUT OF THE OPTICAL AXIS AS LIGHT CONDITIONS WARRANT. EXCLUDES:WINDOW, OPTICAL INSTRUMENT.]. 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 1240016546171 does not contain precious metals.
This NSN is associated to Schedule B 9803200000: military equipments not identified by kind. The Schedule B End Use is listed as military apparel and footwear.
This information was last updated on Jul 01, 2025.