National Stock Number (NSN) 6685-00-641-3176, or NIIN 006413176, (indicator,humidity,plug) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 6 stock numbers. Five of the National Stock Numbers that it replaces are: 6685007296693, 6210004131215, 6685006240522, 6685007841083, 6685005269183.
There are 11 manufacturer part numbers associated with this NSN. 5 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of May 23, 2013. There have been 3 contracts issued for this part number, with 3 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE4A613MH467, SPM4A612MGJ20, SPM4A610MB141. The total value of the awarded contracts has been US$ 10,216.45.
This NSN is somewhat common among different platforms, belonging to 9 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 22, 2011, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 08357. [AN ITEM WHICH USES THE CHANGING COLOR OF A DESICCANT IN THE PRESENCE OF MOISTURE TO INDICATE HUMIDITY. THE DESICCANT IS IN A PLUG THROUGH WHICH THE COLOR MAY BE OBSERVED AND COMPARED WITH A CHART.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 6685006413176 does not contain precious metals.
This NSN is associated to Schedule B 9025805050: hydrometers and similar floating instruments,hygrometers and psychrometers, nesoi. The Schedule B End Use is listed as measuring, testing, control instruments. NAICS classification category 334519: other measuring and controlling device manufacturing.
This information was last updated on Jul 01, 2025.