National Stock Number
3110-00-421-8445
National Stock Number (NSN) 3110-00-421-8445, or NIIN 004218445, (bearing,roller,needle) was assigned February 9, 1972 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 4 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 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 somewhat common among different platforms, belonging to 3 different weapons systems.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Feb 02, 2005, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 00051. [A SINGLE OR MULTIPLE-ROW ANTIFRICTION BEARING USED WITH OR WITHOUT INNER OR OUTER RACES CHARACTERIZED BY RELATIVELY SMALL SIZE ROLLERS USUALLY NOT RANGING ABOVE 0.250 INCH (6.35MM) DIAMETER AND GENERALLY LONGER IN LENGTH IN RELATION TO DIAMETER.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 3110004218445 contains an unknown precious metal.
This NSN is associated to Schedule B 8482400000: needle roller bearings. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332991: ball and roller bearing manufacturing.
This information was last updated on Aug 01, 2025.