National Stock Number
6850-00-664-1403
National Stock Number (NSN) 6850-00-664-1403, or NIIN 006641403, (antifreeze) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 6850001352839.
There are 20 manufacturer part numbers associated with this NSN. 4 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 15 suppliers. Today, 13 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 a strong supply network for this NSN, with 16 sources of supply.
This part number has not been procured by the US Government in over 5 years.
This NSN is unique to one weapons system.
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 Oct 24, 2007, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 05131. [ANTIFREEZE IS A CHEMICAL SUBSTANCE, COMPOUND OR MIXTURE WHICH, WHEN IN AQUEOUS SOLUTIONS OF PRESCRIBED PROPORTION, WILL PREVENT FREEZING OF WATER-COOLED COOLING SYSTEMS.]. 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 6850006641403 does not contain precious metals.
This NSN is associated to Schedule B 3820000000: antifreezing preparation and prepared deicing fluids. The Schedule B End Use is listed as chemicals-other. NAICS classification category 325998: all other miscellaneous chemical product and preparation manufacturing.
This information was last updated on Jul 01, 2025.