National Stock Number
5133-00-232-9256
National Stock Number (NSN) 5133-00-232-9256, or NIIN 002329256, (counterbore,machine) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 5133002224198.
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, there are no suppliers 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 2019, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 05259. [AN END CUTTING TOOL HAVING TWO OR MORE CUTTING EDGES WITH FLUTES OR GROOVES FOR THE PASSAGE OF CUTTINGS, AN INTEGRAL OR REMOVABLE HOLDER DESIGNED FOR ADAPTION TO THE END OF A MACHINE SPINDLE. THE FLUTES OR GROOVES ARE USUALLY HELICAL TO GIVE A POSITIVE RAKE AT THE CUTTING EDGES. IT IS DESIGNED TO FORM A FLAT-BOTTOMED ENLARGEMENT OF THE MOUTH OF A PREVIOUSLY FORMED CYLINDRICAL HOLE. FOR ITEMS REQUIRING A HOLDER BUT THE HOLDER IS NOT INCLUDED, USE CUTTER, COUNTERBORE.]. 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 5133002329256 does not contain precious metals.
This NSN is associated to Schedule B 8205100000: drilling, threading or tapping tools and parts thereof, base metal. The Schedule B End Use is listed as photo, service industry machinery.
This information was last updated on Aug 01, 2025.