National Stock Number (NSN) 3110-00-155-6506, or NIIN 001556506, (bearing,roller,cylindrical) 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: 3110001557416, 3110001556544, 3110005546054.
There are 15 manufacturer part numbers associated with this NSN. 8 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 15 suppliers. Today, 10 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 7 suppliers are 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 Oct 06, 2015. There have been 3 contracts issued for this part number, with 3 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: SPE4A616V0328, SPE4A616V0328, SPE4A614VC853, SPE4A614M7398, SPE4A614M7398. The total value of the awarded contracts has been US$ 3,854.51.
This NSN is somewhat common among different platforms, belonging to 4 different weapons systems.
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 Jan 04, 2014, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government does not have adequate data, lacks rights to data, or both, needed to purchase this part from additional sources. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 00015. [A NONADJUSTABLE ROLLER BEARING CONSISTING OF A SINGLE OR MULTIPLE-ROW OF HARDENED CYLINDRICAL ROLLERS AND A RETAINER USED WITH OR WITHOUT INNER OR OUTE R RINGS. EXCLUDES:BEARING,ROLLER,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 3110001556506 does not contain precious metals.
This NSN is associated to Schedule B 8482500000: other cylindrical roller bearings. 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 Jun 01, 2025.