National Stock Number
2540-00-445-7640
National Stock Number (NSN) 2540-00-445-7640, or NIIN 004457640, (defroster,heat diff) was assigned January 12, 1968 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 77777. 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 2540004457640 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.