DLMS™ Summary National Stock Number 1020-00-334-1457 National Stock Number (NSN) 1020-00-334-1457, or NIIN 003341457, (piston and block as) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 003341457 was cancelled on April 29, 2010, 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 1020003341457 does not contain precious metals. This information was last updated on Jan 23, 2017.