National Stock Number
2520-00-421-9487
National Stock Number (NSN) 2520-00-421-9487, or NIIN 004219487, (disk,clutch) was assigned December 14, 1970 in the Federal Logistics Information System (FLIS). NIIN 004219487 was cancelled on May 2, 2003, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN replaces 2 stock numbers: 2520009834278, 2520004362972.
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) 10259. [INC 10259 CANCELLED/REPLACED BY ,INC 52060, FIIG A521P0, APP-KEY ,INC 52059, FIIG A521P0, APP-KEY , ON 041996 A SOLID CIRCULAR DISK OF ASBESTOR WIRE-WOVEN LINING MATERIAL OR CERAMIC AND METAL SUBSTANCE AND THE LIKE, MOLDED TO ONE OR BOTH SIDES AND FASTENED DIRECTLY OR INDIRECTLY TO THE CENTER SPLINE OR HUB, WHICH RECEIVES AND TRANSMITS MOTION OR POWER BY ENGAGEMENT WITH THE PRESSURE PLATE ASSEMBLY AND THE FLYWHEEL OR THE LIKE. INCLUDES WET TYPE DISK, AND MAY INCLUDE DAMPER SPRINGS. THIS ITEM IS DESIGNED TO BE USED IN CONJUNCTION WITH CLUTCH ASSEMBLY, FRICTION.]. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). 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 2520004219487 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.