National Stock Number
6680-00-450-6943
National Stock Number (NSN) 6680-00-450-6943, or NIIN 004506943, (indicator,sight,liquid) was assigned December 26, 1969 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 6680003698132.
There are 3 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. 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.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 03175. [AN ITEM SO DESIGNED TO HAVE A PORTION OR ALL OF ITS BODY TRANSPARENT TO PERMIT THE VISUAL EXAMINATION OF THE AMOUNT OF LIQUID IN A PRESSURE VESSEL, BOILER, EVAPORATOR, STILL, PROCESSING TANK, RESERVOIR, PIPE TUBING LINE, AND THE LIKE, AND/OR TO DETERMINE THE FLOW TO A LUBRICATED PART. IT MAY ALSO BE PROVIDED WITH AN ELEMENT THAT CHANGES COLORS TO INDICATE CHANGES IN MOISTURE CONTENT. THE ITEM MAY HAVE A MEANS FOR REFILLING. EXCLUDES:INDICATOR, LIQUID QUANTITY AND INDICATOR, RATE OF FLOW.]. 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 6680004506943 contains an unknown precious metal.
This NSN is associated to Schedule B 9026107000: instruments and apparatus for measuring or checking the flow or level of liquids, nesoi. The Schedule B End Use is listed as measuring, testing, control instruments. NAICS classification category 334513: instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables.
This information was last updated on Aug 01, 2025.