National Stock Number
5110-00-004-3991
National Stock Number (NSN) 5110-00-004-3991, or NIIN 000043991, (punch and die,knockout) was assigned June 7, 1972 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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, 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.
This NSN is assigned to Item Name Code (INC) 17981. [A HAND TOOL DESIGNED TO PUNCH A HOLE IN SHEET METAL AND THE LIKE, BY FORCING A PUNCH THROUGH THE MATERIAL AND INTO A SUPPORTING DIE BY SCREW ACTION. SEE ALSO CUTTER, KNOCKOUT.]. 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 5110000043991 does not contain precious metals.
This NSN is associated to Schedule B 8207303000: tools for pressing, stamping or punching, suitable for cutting metal, and parts thereof. The Schedule B End Use is listed as metalworking machine tools. NAICS classification category 333514: special die and tool, die set, jig, and fixture manufacturing.
This information was last updated on Jul 01, 2025.