National Stock Number
2520-00-459-0337
National Stock Number (NSN) 2520-00-459-0337, or NIIN 004590337, (clutch assembly,friction) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 2520004938739.
There are 11 manufacturer part numbers associated with this NSN. 9 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 9 suppliers. Today, 6 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers 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) 36854. [A SPRING LOADED DEVICE DESIGNED TO CONNECT AND DISCONNECT POWER BETWEEN A DRIVING DEVICE (ENGINE, MOTOR, AND THE LIKE) AND A DRIVEN MEMBER (TRANSMISSION AND THE LIKE). IT MAY BE OF WET OR DRY DESIGN. INCLUDES COVER, AND MAY INCLUDE INTERMEDIATE PLATES, AND/OR DISK, CLUTCH.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. 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 2520004590337 contains an unknown precious metal.
This NSN is associated to Schedule B 8483909500: parts, nesoi, of bearing housings & plain shaft bearings, housed bearings, clutches, universal joints, flywheels and transmission shafts. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 333613: mechanical power transmission equipment manufacturing.
This information was last updated on Jul 01, 2025.