National Stock Number
3815-00-172-1991
National Stock Number (NSN) 3815-00-172-1991, or NIIN 001721991, (tooth,surface ripping) was assigned August 23, 1972 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 3815003933184.
There are 4 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. 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 unique to one weapons system.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Mar 11, 2014, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 28152. [AN ITEM DESIGNED TO ATTACH TO THE END OF A TOOTH SHANK OF A SCARIFIER, EXCAVATOR BUCKET, DIPPER, OR THE LIKE, AND FORMS THE CUTTING OR RIPPING EDGE. 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 3815001721991 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 Jul 01, 2025.