National Stock Number
2520-00-741-1687
National Stock Number (NSN) 2520-00-741-1687, or NIIN 007411687, (boot,power transmission componen) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
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, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is 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) 50684. [A FLEXIBLE, NONMETALLIC ITEM DESIGNED TO PREVENT ENTRY OF DUST, MOISTURE AND OTHER CONTAMINANTS INTO CRITICAL AREAS AROUND VEHICULAR UNIVERSAL JOINTS, PROPELLER SHAFTS, TRANSFER TRANSMISSION ASSEMBILIES, AND THE LIKE. SEALING MAY BE EITHER STATIC OR DYNAMIC. THE ITEM MAY INCLUDE MOUNTING HARDWARE (SUPPORT PLATES, CLAMPS AND THE LIKE). SEE ALSO BOOT, VEHICULAR COMPONENTS. EXCLUDES BOOT, DUST AND MOISTURE SEAL.]. 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 2520007411687 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.