National Stock Number
4820-01-209-1128
National Stock Number (NSN) 4820-01-209-1128, or NIIN 012091128, (guide,piston) was assigned May 23, 1985 in the Federal Logistics Information System (FLIS). NIIN 012091128 was cancelled on August 2, 2010, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 5360012464080. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are 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. 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 4820012091128 does not contain precious metals.
This information was last updated on Aug 01, 2025.