National Stock Number
6650-01-684-2503
National Stock Number (NSN) 6650-01-684-2503, or NIIN 016842503, (refractometer) was assigned October 28, 2019 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) 07312. [AN INSTRUMENT FOR DETERMINING THE REFRACTIVE INDEX OF A SUBSTANCE, BY MEANS OF A RAY OF LIGHT PASSING OBLIQUELY FROM ONE MEDIUM INTO ANOTHER OF DIFFERENT DENSITY, OR BY THE CHANGE IN DIRECTION OF THE FLOW OF AN ELECTRIC CURRENT WHEN IT PASSES FROM ONE MEDIUM TO ANOTHER OF DIFFERENT CONDUCTIVITY OR OF OTHER DIFFERING ELECTRIC QUALITIES. EXCLUDES:SPECTROSCOPE (AS MODIFIED).]. 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 6650016842503 does not contain precious metals.
This NSN is associated to Schedule B 9027509000: instrument and apparatus for physical or chemical analysis using optical radiations, nesoi. The Schedule B End Use is listed as laboratory testing instruments. NAICS classification category 334516: analytical laboratory instrument manufacturing.
This information was last updated on Aug 01, 2025.