National Stock Number
1005-01-731-6540
National Stock Number (NSN) 1005-01-731-6540, or NIIN 017316540, (bolt,breech) was assigned July 9, 2025 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 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 22239. [A MECHANISM WHICH CLOSES THE BREECH IN A CARBINE, MACHINE GUN, RIFLE, AND THE LIKE. IT IS DESIGNED TO PUSH A CARTRIDGE INTO THE CHAMBER OF A GUN BY SLIDING ACTION. IT MAY CONTAIN THE EJECTOR, EXTRACTOR, AND/OR FIRING PIN. 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 1005017316540 does not contain precious metals.
This information was last updated on Aug 01, 2025.