National Stock Number
1660-00-402-6579
National Stock Number (NSN) 1660-00-402-6579, or NIIN 004026579, (cap assy,valve butt) was assigned April 8, 1970 in the Federal Logistics Information System (FLIS). NIIN 004026579 was cancelled on April 2, 2003, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. 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, one supplier is listed as an Active supplier 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. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1660004026579 does not contain precious metals.
This information was last updated on Jul 01, 2025.