National Stock Number
2540-00-421-1521
National Stock Number (NSN) 2540-00-421-1521, or NIIN 004211521, (no item name available) has an unknown assigned date. NIIN 004211521 was cancelled on July 14, 1974, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 2540002882873. This NSN replaces 2 stock numbers: 2540001690055, 2540003114952.
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.
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 2540004211521 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.