National Stock Number
2520-12-337-8493
National Stock Number (NSN) 2520-12-337-8493, or NIIN 123378493, (ring,support,transmission) has an unknown assigned date. NIIN 123378493 was cancelled on January 2, 2013, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 2 suppliers are listed as Active suppliers 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) 39705. [A CIRCULAR, SINGLE OR MULTIPIECE ITEM, METALLIC OR NONMETALLIC IN COMPOSITION, DESIGNED TO BE USED FOR SUPPORTING A SHAFT, AXLE OR THE LIKE IN A GEARBOX. IT IS SUPPLIED IN DIFFERENT CROSS-SECTIONAL SHAPES. SEE ALSO SHIM; SPACER RING AND WASHER (1), FLAT.].
This information was last updated on Aug 01, 2025.