National Stock Number (NSN) 3130-01-313-3056, or NIIN 013133056, (cap,pillow block) was assigned January 5, 1990 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 3110009166224.
There are 5 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 2 suppliers are listed as Active suppliers 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 Mar 19, 2014. There have been 5 contracts issued for this part number, with 5 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: SPE4A614MB214, SPM4A612MMC73, SPM4A612MEW30, SPM4A611MPS89, SPM4A611MNM58. The total value of the awarded contracts has been US$ 18,001.64.
This NSN is somewhat common among different platforms, belonging to 7 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 Jan 14, 2007, 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) 21546. [AN ITEM DESIGNED TO BE AFFIXED TO A BASE, FORMING A HOUSING FOR A REMOVABLE BEARING OR THE BEARING MAY BE AN INTEGRAL PART OF THE HOUSING. IT IS USED TO PREVENT THE ADMISSION OF DIRT AND/OR FOREIGN MATTER, RETAIN THE LUBRICANT AND TO POSITION A SHAFT OR THE LIKE.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 3130013133056 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 Aug 01, 2025.