National Stock Number
5133-01-051-1021
National Stock Number (NSN) 5133-01-051-1021, or NIIN 010511021, (cutter,counterbore) was assigned November 22, 1977 in the Federal Logistics Information System (FLIS). NIIN 010511021 was cancelled on April 30, 2010, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are 5 manufacturer part numbers associated with this NSN. 4 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. 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. ISO Group has several sources of supply for 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) 05425. [THE DETACHABLE PORTION OF A MACHINE COUNTERBORE WHICH INCLUDES THE CUTTING EDGES AND A SPECIAL SHANK. THE SPECIAL SHANK IS DESIGNED TO ACCOMMODATE A SPECIAL HOLDER. THE CUTTER MAY HAVE AN INTEGRAL PILOT OR BE DESIGNED FOR AN INTERCHANGEABLE PILOT, WHICH MAY OR MAY NOT BE INCLUDED. FOR ITEMS WITH SPECIAL HOLDER INCLUDED, USE COUNTERBORE, MACHINE.]. 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 5133010511021 does not contain precious metals.
This information was last updated on May 01, 2025.