National Stock Number (NSN) 6680-00-099-5866, or NIIN 000995866, (indicator,sight,liquid) was assigned December 15, 1972 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 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.
This NSN is somewhat common among different platforms, belonging to 5 different weapons systems.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 31, 2013, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.
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 6680000995866 does not contain precious metals.
This NSN is associated to Schedule B 8710000090: parts of armored fighting vehicles,motorized, whether or not fitted with weapons. The Schedule B End Use is listed as military trucks, armored vehicles, etc.. NAICS classification category 336992: military armored vehicle, tank, and tank component manufacturing.
This information was last updated on Jul 01, 2025.