National Stock Number (NSN) 3110-01-389-1704, or NIIN 013891704, (shield,bearing,replacement) was assigned April 19, 1994 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 is actively being procured by the US Government, with procurement history within the last 90 days. There have been 22 contracts issued for this part number, with 22 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE4A625V404Z, SPE7M424V2930, SPE4A624PG074, SPE7M424P1132, SPE4A623PP398. The total value of the awarded contracts has been US$ 62,044.74.
This NSN is somewhat common among different platforms, belonging to 5 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 May 23, 2009, 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 rights to use the data needed to purchase this part from additional sources are not owned by the Government and cannot be purchased. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 18149. [A METAL OR PLASTIC SHIELD LOCATED ON THE FACE SIDES OF A BALL OR ROLLER BEARING, PRIMARILY DESIGNED TO PREVENT FOREIGN SUBSTANCES FROM ENTERING THE INTERNAL CONSTRUCTION OF THE BEARING.]. 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 3110013891704 does not contain precious metals.
This NSN is associated to Schedule B 8482991050: parts, except inner and outer races, for ball bearings, (including ball bearings with integral shafts). 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 Jul 01, 2025.