National Stock Number (NSN) 3110-00-100-5990, or NIIN 001005990, (bearing,roller,tapered) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 3 stock numbers: 3110010237190, 3110010275048, 3110009520418.
There are 17 manufacturer part numbers associated with this NSN. 14 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 10 suppliers. Today, 6 suppliers are listed as Active suppliers 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, with the most recent procurement date of Feb 25, 2014. There have been 2 contracts issued for this part number, with 2 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A614V9466, SPM4A510M4611. The total value of the awarded contracts has been US$ 2,125.31.
This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 16, 2009, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 00021. [A CYLINDRICAL DEVICE IN WHICH THE INNER CONE OR OUTER CUP TURNS UPON A SINGLE OR DOUBLE ROW OF TAPERED HARDENED ROLLERS WHICH ROLL EASILY IN A RACE, THUS MINIMIZING FRICTION AND DESIGNED TO CARRY A RADIAL LOAD AND CAPABLE OF SUSTAINING AXIAL THRUST. EXCLUDES:BEARING,ROLLER,THRUST.]. 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 3110001005990 contains an unknown precious metal.
This NSN is associated to Schedule B 8482200030: tapered roller bearings, cup and cone assemblies entered as a set, wheel hub units, other than flanged. 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.