National Stock Number
6850-01-190-5509
National Stock Number (NSN) 6850-01-190-5509, or NIIN 011905509, (cooling water compound) was assigned September 27, 1984 in the Federal Logistics Information System (FLIS). NIIN 011905509 was cancelled on May 1, 2010, 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 are 4 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 4 suppliers. Today, 3 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) 24046. [AN ITEM COMPOUNDED OF SEVERAL INGREDIENTS SPECIFICALLY DESIGNED TO BE ADDED TO COOLING WATER IN AIR CONDITIONING SYSTEMS, HEAT EXCHANGERS, CONDENSERS, TRANSFORMERS, AIR COMPRESSORS AND THE LIKE, OR ANY OTHER SYSTEM IN WHICH MUD, SILT, SEDIMENT OR CORROSION, OR BACTERIA ACCUMULATE, FOR THE PURPOSE OF PREVENTION OR ELIMINATION OF ONE OF THE ABOVE PROBLEMS. ITEM MAY ALSO TEND TO RENDER WATER ODORLESS.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. Information is in the Hazardous Materials Information Resource System (HMIRS). NSN 6850011905509 does not contain precious metals.
This information was last updated on Aug 01, 2025.