National Stock Number
2520-01-312-1751
National Stock Number (NSN) 2520-01-312-1751, or NIIN 013121751, (differential gear unit) was assigned December 12, 1989 in the Federal Logistics Information System (FLIS). NIIN 013121751 was cancelled on December 5, 2019, 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 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 2 suppliers. 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.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 61761. [AN ARRANGEMENT OF GEARS IN AN EPICYCLIC TRAIN THAT CONNECTS TWO SHAFTS IN THE SAME LINE. THE DRIVING FORCE IS EQUALLY DIVIDED BETWEEN THE SHAFTS WHICH ROTATE IN DIFFERENT DIRECTIONS WITH ONE SHAFT PERMITTED TO REVOLVE FASTER THAN THE OTHER.]. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 2520013121751 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.