National Stock Number
4921-01-525-2640
National Stock Number (NSN) 4921-01-525-2640, or NIIN 015252640, (test set subassembly,torpedo components) was assigned November 2, 2004 in the Federal Logistics Information System (FLIS). NIIN 015252640 was cancelled on April 2, 2005, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4921015247831. 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) 42645. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4921015252640 does not contain precious metals.
This information was last updated on Aug 01, 2025.