National Stock Number
6850-00-135-2850
National Stock Number (NSN) 6850-00-135-2850, or NIIN 001352850, (antifreeze) was assigned October 19, 1973 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over a year. There have been 26 contracts issued for this part number, with 44 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A723FB4LL, SPE4A723FAD37, SPE4A622FCJW5, SPE4A621FA4PN, SPE4A619FDBET. The total value of the awarded contracts has been US$ 8,767.16.
There has been very little 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 Aug 01, 2020, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part has been designated a high-reliability part under a formal reliability program. Probability of failure would be unacceptable from the standpoint of safety of personnel and/or equipment. The cognizant engineering activity has determined that data to define and control reliability limits cannot be obtained nor is it possible to draft adequate specifications for this purpose. Valid AMCs: 1, 2, 3, 4 and 5.
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 6850001352850 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 Aug 01, 2025.