National Stock Number
4910-01-274-2399
National Stock Number (NSN) 4910-01-274-2399, or NIIN 012742399, (pilot,valve seat refacing) has an unknown assigned date. NIIN 012742399 was cancelled on December 11, 1999, 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 no manufacturer part numbers associated to 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) 11030. [A DEVICE WHICH, WHEN INSERTED INTO THE BORE OF A VALVE GUIDE ON AN INTERNAL COMBUSTION ENGINE, SERVES AS A CENTER POST FOR ALIGNING AND GUIDING THE GRINDING STONE AND/OR REAMER OF A VALVE SEAT REFACER.]. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4910012742399 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.