National Stock Number
3110-00-155-6401
National Stock Number (NSN) 3110-00-155-6401, or NIIN 001556401, (bearing,ball,annular) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 3110002750263, 3110008967944.
There are 33 manufacturer part numbers associated with this NSN. 12 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 32 suppliers. Today, 18 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 16 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.
There has been very little 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 Apr 02, 1991, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 00014. [A CYLINDRICAL DEVICE IN WHICH THE INNER OR OUTER RING TURNS UPON A SINGLE OR DOUBLE ROW OF HARDENED BALLS WHICH ROLL EASILY BETWEEN THE TWO RINGS, THUS MINIMIZING FRICTION. FOR ITEMS WITH FACES SPECIALLY GROUND FOR DUPLEX MOUNTING SEE BEARING,BALL,DUPLEX. EXCLUDES:BEARING,BALL,AIRFRAME.]. 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 3110001556401 contains an unknown precious metal.
This NSN is associated to Schedule B 8482105028: angular contact ball bearings, nesoi. 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.