National Stock Number
5133-01-171-3937
National Stock Number (NSN) 5133-01-171-3937, or NIIN 011713937, (counterbore,hand) was assigned February 7, 1984 in the Federal Logistics Information System (FLIS). NIIN 011713937 was cancelled on September 2, 2003, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 5120001507488. This NSN does not replace any other NSNs.
There is only one manufacturer part number 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, one supplier is 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) 05637. [AN END CUTTING TOOL FOR FORMING A FLAT BOTTOMED ENLARGEMENT OF THE MOUTH OF A PREVIOUSLY FORMED CYLINDRICAL HOLE. IT MAY HAVE AN INTEGRAL OR INSERTED PILOT. DESIGNED TO BE DRIVEN OR TURNED BY A WRENCH, CARPENTER'S BRACE OR HANDLE. FOR POWER DRIVEN ITEMS, SEE COUNTERBORE, MACHINE.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5133011713937 does not contain precious metals.
This information was last updated on Aug 01, 2025.