DLMS™ Summary National Stock Number 1020-00-026-6649 National Stock Number (NSN) 1020-00-026-6649, or NIIN 000266649, (valve,relief) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 000266649 was cancelled on May 8, 2012, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. 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 1020000266649 does not contain precious metals. This information was last updated on May 04, 2012.