NSN 2520-21-921-7439, 2520219217439
DIFFERENTIAL GEAR UNIT

Federal Supply Classification: FSC 2520 - Vehicular Power Transmission Components
National Item Identification Number: NIIN 219217439
Codification Country: Canada
Item Name Code: INC 61761
Hazardous Material Indicator Code: (P) 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.

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DLMS^® Summary

National Stock Number 2520-21-921-7439

National Stock Number (NSN) 2520-21-921-7439, or NIIN 219217439, (differential gear unit) has an unknown assigned date. 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) 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.].

This information was last updated on Aug 15, 2025.