DLMS™ Summary National Stock Number 1010-01-167-6616 National Stock Number (NSN) 1010-01-167-6616, or NIIN 011676616, (breechblock) was assigned December 3, 1983 in the Federal Logistics Information System (FLIS). NIIN 011676616 was cancelled on April 30, 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) 22188. [A MOVABLE STEEL BLOCK IN THE MECHANISM OF A BREECHLOADING GUN THAT SEALS THE BREECH OPENING OF THE BARREL DURING FIRING. EXCLUDES BOLT, AUTOMATIC WEAPON.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1010011676616 contains an unknown precious metal. This information was last updated on Jan 20, 2017.