DLMS™ Summary National Stock Number 1015-01-543-4559 National Stock Number (NSN) 1015-01-543-4559, or NIIN 015434559, (cam,breechblock,operating lever) was assigned September 13, 2006 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs. There is only one manufacturer part number 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, 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. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 02, 2011, this NSN's acquisition method was noted as: Acquire, for the first time, directly from the actual manufacturer rather than the prime contractor who is not the actual manufacturer. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5. This NSN is assigned to Item Name Code (INC) 31418. [AN IRREGULARLY SHAPED ITEM, WHOSE PERIPHERY IS USED AS AN ECCENTRIC SURFACE TO ENGAGE AND DISENGAGE WITH CORRESPONDING NOTCHES IN THE BREECHBLOCK HINGE BLOCK OF A WEAPON, WHEN THE BREECHBLOCK OPERATING LEVER IS DEPRESSED OR ELEVATED. IT IS AN INTEGRAL PART OF THE BREECHBLOCK OPERATING LEVER.]. 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 1015015434559 does not contain precious metals. This NSN is associated to Schedule B 9305913010: parts and accessories of military artillery weapons of 9301.11 or 9301.19. 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 Apr 01, 2017.