National Stock Number (NSN) 2990-01-598-7539, or NIIN 015987539, (adjusting device,belt-chain tens) was assigned August 25, 2011 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 5 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 5 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number is actively being procured by the US Government, with procurement history within the last 90 days. There have been 35 contracts issued for this part number, with 37 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 6 different suppliers. The last contract numbers awarded were: SPE7L025F1038, SPE7L025F1038, SPE7L025F0765, SPE7L025F0566, SPE7L025F0566. The total value of the awarded contracts has been US$ 236,718.40.
This NSN is somewhat common among different platforms, belonging to 9 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. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 87,604. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 26, 2011, 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 2990015987539 does not contain precious metals.
This NSN is associated to Schedule B 7315190000: parts of articulated link chain of iron or steel. The Schedule B End Use is listed as iron and steel products, other. NAICS classification category 333613: mechanical power transmission equipment manufacturing.
This information was last updated on Jul 01, 2025.