National Stock Number
2990-01-576-8291
National Stock Number (NSN) 2990-01-576-8291, or NIIN 015768291, (adjusting device,belt-chain tens) was assigned August 17, 2009 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Jul 29, 2015. There have been 11 contracts issued for this part number, with 11 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 5 different suppliers. The last contract numbers awarded were: SPE7L315VB277, SPE7L315V8472, SPE7L315M4733, SPM7L411V4465, SPM7L411V3882. The total value of the awarded contracts has been US$ 88,462.97.
This NSN is somewhat common among different platforms, belonging to 10 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 Aug 18, 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. This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 36614. [A DEVICE DESIGNED TO FACILITATE THE ADJUSTMENT OF DRIVE BELT OR ROLLER CHAIN TENSION ON BELT OR CHAIN DRIVEN ACCESSORIES THROUGH A HYDRAULIC OR SPRING ACTUATED MECHANISM. IT CONSISTS OF AN ADJUSTING ARM, IDLER PULLEY OR SPROCKET WHEEL AND OTHER STRUCTURAL PARTS.]. 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 2990015768291 does not contain precious metals.
This information was last updated on Aug 01, 2025.