National Stock Number
                                            3820-01-338-7448
                                    
                                
                            
                            
                                National Stock Number (NSN) 3820-01-338-7448, or NIIN 013387448, (bit,rock drill) was assigned May 10, 1991 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs. 
There are 3 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. 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 Apr 26, 2008, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.)  The annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). (NOTE: This code shall not be used when screening parts entering the inventory. It shall not be assigned in preference to or supersede any other AMSC.) Valid AMCs: 1, 2, 3, 4 and 5. 
This NSN is assigned to Item Name Code (INC) 32591. [A DETACHABLE, END CUTTING DRILLING TOOL WITH AN INTERNAL THREAD OR TAPERED SOCKET AT ONE END FOR ATTACHING A ROCK DRILL ROD. THE OPPOSITE END IS DESIGNED WITH TWO OR MORE CUTTING EDGES FOR DRILLING INTO ROCK FORMATION BY IMPACT AND A SLIGHT ROTARY MOTION. IT CONTAINS A HOLE OR HOLES IN THE CUTTING FOR THE PURPOSE OF CONDUCTING AIR OR WATER TO CLEAR THE HOLE BEING DRILLED. IT IS USED WITH POWERED DRIFTER DRILLS, SINKER DRILLS, AND THE LIKE.]. 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 3820013387448 does not contain precious metals. 
This NSN is associated to Schedule B 8430498050: boring or sinking machinery, nesoi. The Schedule B End Use is listed as excavating machinery. NAICS classification category 333131: mining machinery and equipment manufacturing. 
This information was last updated on Aug 01, 2025.