National Stock Number
2520-00-394-2987
National Stock Number (NSN) 2520-00-394-2987, or NIIN 003942987, (yoke,universal joint,vehicular) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 2520005064742, 2520007349697.
There are 14 manufacturer part numbers associated with this NSN. 8 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 19 suppliers. Today, 16 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 10 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 02, 2005, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 52120. [A COMPONENT OF A UNIVERSAL JOINT DESIGNED FOR VEHICULAR APPLICATIONS. CONSISTS OF A FORK-LIKE DEVICE TO ACCOMMODATE THE SPIDER AND BEARINGS OF A UNIVERSAL JOINT BY VARIOUS ATTACHING METHODS. THE OPPOSITE END MUST HAVE EITHER A FLANGE, HUB, OR SPLINED STUB SHAFT WHICH IS DESIGNED TO BE ATTACHED TO A DRIVING OR DRIVEN MEMBER. FOR ITEMS WITH A SHAFT, THE LENGTH OF THE PLAIN PORTION MUST NOT EXCEED THE LENGTH OF THE SPLINES.]. 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 2520003942987 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 Aug 01, 2025.