National Stock Number
3130-01-377-3729
National Stock Number (NSN) 3130-01-377-3729, or NIIN 013773729, (liner,bearing housing) was assigned July 15, 1993 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over a year. There have been 20 contracts issued for this part number, with 20 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: SPE4A722F6045, SPE4A722F6045, SPE4A721F2556, SPE4A721F2556, SPE4A721F1654. The total value of the awarded contracts has been US$ 1,172,740.00.
This NSN is somewhat common among different platforms, belonging to 2 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 Sep 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 61786. [A RIGID TUBULAR ITEM WHICH FITS BETWEEN A BEARING AND ITS HOUSING, DESIGNED PRIMARILY AS A REPLACEABLE WEAR SURFACE WITHIN THE INNER WALL OF THE HOUSING.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 3130013773729 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.