National Stock Number (NSN) 3110-01-570-4490, or NIIN 015704490, (bearing,slewing ring) was assigned December 31, 2008 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. 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 Jan 15, 2020. There have been 7 contracts issued for this part number, with 7 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 4 different suppliers. The last contract numbers awarded were: SPE4A620P7356, SPE4A619V234J, SPE4A618V450S, SPE4A613M7478, SPM4A612MHJ19. The total value of the awarded contracts has been US$ 8,768.89.
This NSN is somewhat common among different platforms, belonging to 8 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 Apr 11, 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. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 41984. [A MAJOR CYLINDRICAL ANTIFRICTION BEARING IN WHICH THE INNER OR OUTER RING TURNS ON A SINGLE OR MULTIPLE ROW OF HARDENED BALLS AND/OR ROLLERS. THE ROLLING ELEMENTS ROLL EITHER DIRECTLY ON THE INNER AND OUTER RING OR ON RACE WIRES INSERTED INTO THESE RINGS WHICH MAY HAVE GEAR TEETH. THE ITEM IS DESIGNED FOR DIRECT ECCENTRIC MOUNTING ON COMPONENTS REQUIRING SUPPORT FOR ROTATIONAL OPERATION AND IT IS PRIMARILY USED TO ACCOMMODATE AND SUPPORT RADAR ANTENNAS, GUN MOUNTS, TANK TURRETS AND SLEWING CRANES.]. 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 3110015704490 does not contain precious metals.
This NSN is associated to Schedule B 8710000090: parts of armored fighting vehicles,motorized, whether or not fitted with weapons. The Schedule B End Use is listed as military trucks, armored vehicles, etc.. NAICS classification category 336992: military armored vehicle, tank, and tank component manufacturing.
This information was last updated on Jul 01, 2025.