National Stock Number
3815-00-421-9521
National Stock Number (NSN) 3815-00-421-9521, or NIIN 004219521, (shank-tooth,surface ripping) was assigned December 14, 1970 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. 2 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.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 28522. [AN ITEM DESIGNED TO BE ATTACHED TO A SCARIFIER ASSEMBLY, EXCAVATOR BUCKET, EXCAVATOR DIPPER, OR THE LIKE, AND FORMS THE CUTTING OR RIPPING EDGE. IT MAY HAVE A REPLACEABLE TOOTH. IT IS USED ON A VARIETY OF EARTH MOVING, CONSTRUCTION, MINING, EXCAVATING, AND HIGHWAY MAINTENANCE EQUIPMENT FOR BREAKING THE HARD SURFACE.]. 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 3815004219521 contains an unknown precious metal.
This NSN is associated to Schedule B 8431499015: rippers and rooters for mounting on machinery. The Schedule B End Use is listed as excavating machinery. NAICS classification category 333120: construction machinery manufacturing.
This information was last updated on Aug 01, 2025.