National Stock Number
4820-01-090-5957
National Stock Number (NSN) 4820-01-090-5957, or NIIN 010905957, (piston,valve) has an unknown assigned date. NIIN 010905957 was cancelled on May 2, 1990, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4820011315725. 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 data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820010905957 does not contain precious metals.
This information was last updated on Jul 01, 2025.