DLMS™ Summary National Stock Number 1005-01-290-4037 National Stock Number (NSN) 1005-01-290-4037, or NIIN 012904037, (upper receiver assy) was assigned December 10, 1988 in the Federal Logistics Information System (FLIS). 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, only one supplier is deemed design controlled or valid supply parts. This part number has not been procured by the US Government in over 5 years. There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. 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 1005012904037 contains an unknown precious metal. This information was last updated on Mar 01, 2017.