National Stock Number
6685-00-892-1643
National Stock Number (NSN) 6685-00-892-1643, or NIIN 008921643, (psychrometer) was assigned January 1, 1962 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 09725. [AN INSTRUMENT THAT SENSES, MEASURES, AND INDICATES THE AMOUNT OF RELATIVE HUMIDITY IN THE ATMOSPHERE. IT CONSISTS OF TWO LIQUID-IN-GLASS THERMOMETERS, ONE OF WHICH IS EQUIPPED WITH A WICK. AIR MOVEMENT (ASPIRATION) IS EFFECTED BY SLINGING THE INSTRUMENT ABOUT, BY USE OF BLOWER, FAN OR THE LIKE; OR THE INSTRUMENT MAY BE USED WITH NO FORCED CIRCULATION OF AIR.]. 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 6685008921643 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.