DLMS™ Summary National Stock Number 1010-12-353-8673 National Stock Number (NSN) 1010-12-353-8673, or NIIN 123538673, (lock,gun safety) has an unknown assigned date. 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) 22635. [AN ITEM ACTIVATED ONLY BY A SAFETY (AS MODIFIED) AND DESIGNED TO LOCK THE HAMMER, SEAR; TRIGGER, OR OTHER COMPONENTS OF THE FIRING MECHANISM OF A GUN TO PREVENT ACCIDENTAL DISCHARGE.]. This information was last updated on Mar 24, 2017.