National Stock Number
6685-00-542-6491
National Stock Number (NSN) 6685-00-542-6491, or NIIN 005426491, (control,humidity) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 005426491 was cancelled on April 2, 2008, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 6685000786987. This NSN replaces 1 stock number, 4130005473718.
There are 3 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are 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) 05661. [A DEVICE COMPOSED OF A CONTROL-ACTUATING MECHANISM, AN ABSORPTION ELEMENT, AND A SWITCH FOR AUTOMATIC CONTROLLING OF HUMIDITY IN ROOMS, COMPARTMENTS, AND THE LIKE. MAY INCLUDE AN INDICATOR.]. 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 6685005426491 contains silver.
This information was last updated on Aug 01, 2025.