DLMS™ Summary National Stock Number 1005-01-041-9393 National Stock Number (NSN) 1005-01-041-9393, or NIIN 010419393, (lock,breech,machine gun) was assigned June 4, 1977 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs. There are 2 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are 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) 62372. [AN ITEM WHICH IS AN INTEGRAL PART OF THE BARREL EXTENSION GROUP OF A WEAPON. IT IS DESIGNED TO PREVENT THE LOSS OF GAS PRESSURE, BY LOCKING THE BARREL EXTENSION TO THE BOLT DURING FIRING.]. 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 1005010419393 does not contain precious metals. This NSN is associated to Schedule B 9305911000: parts and accessories for military rifles of heading 9301. The Schedule B End Use is listed as tanks, artillery, missiles, rockets, guns and ammunition. NAICS classification category 332994: small arms, ordnance, and ordnance accessories manufacturing. This information was last updated on Mar 01, 2017.