National Stock Number
6850-01-559-6646
National Stock Number (NSN) 6850-01-559-6646, or NIIN 015596646, (scale removing compound) was assigned December 28, 2007 in the Federal Logistics Information System (FLIS). NIIN 015596646 was cancelled on August 29, 2018, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that 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) 16638. [A CHEMICAL PRODUCT DESIGNED FOR REMOVAL OF MATERIAL DEPOSITED ON METAL SURFACES, USUALLY ON INTERIOR SURFACES SUCH AS EVAPORATOR TUBES AND HEAT EXCHANGERS. EXCLUDES:SCALE PREVENTION COMPOUNDS, INHIBITORS, AND CORROSION REMOVING COMPOUND.]. 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 I of Federal Standard 313 and an MSDS should be available to the user. NSN 6850015596646 does not contain precious metals.
This information was last updated on Aug 01, 2025.