DLMS™ Summary National Stock Number 1015-00-177-0029 National Stock Number (NSN) 1015-00-177-0029, or NIIN 001770029, (breechblock assembl) has an unknown assigned date. NIIN 001770029 was cancelled on December 2, 1989, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 1015003842973. 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. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1015001770029 does not contain precious metals. This information was last updated on Dec 01, 2014.