National Stock Number (NSN) 3110-01-028-2507, or NIIN 010282507, (bearing,ball,duplex) was assigned September 28, 1976 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, with the most recent procurement date of Dec 23, 2018. There have been 11 contracts issued for this part number, with 21 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE4A519F9909, SPE4A519F9909, SPE4A519F8217, SPE4A519F4901, SPE4A519F4901. The total value of the awarded contracts has been US$ 1,913,888.79.
This NSN is fairly common among different weapons systems, belonging to 17 different platforms.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Nov 30, 2012, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 30213. [TWO SINGLE ROW ANNULAR BALL BEARINGS SELECTED DIMENSIONALLY TO BE A MATCHED PAIR OR SET. THE RING FACES HAVE BEEN SPECIALLY GROUND TO SPECIFIED OFFSETS THAT WILL PRODUCE PREDETERMINED PRELOAD WHEN MOUNTED. MAY INCLUDE A SINGLE ROW ANGULAR CONTACT BEARING WITH FACES SPECIALLY GROUND FOR DUPLEX MOUNTING.]. This item is a Flight Safety Critical Aircraft Part (FSCAP). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 3110010282507 contains an unknown precious metal.
This NSN is associated to Schedule B 8482105068: 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 May 01, 2025.