National Stock Number
4320-00-571-8921
National Stock Number (NSN) 4320-00-571-8921, or NIIN 005718921, (pump,machining,oil) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). NIIN 005718921 was cancelled on April 2, 2009, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4320008504442. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
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 data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4320005718921 does not contain precious metals.
This information was last updated on Jul 01, 2025.