National Stock Number
2520-01-668-7987
National Stock Number (NSN) 2520-01-668-7987, or NIIN 016687987, (housing,flywheel) was assigned December 7, 2017 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is unique to one weapons system.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 07, 2018, 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) 36328. [AN ITEM DESIGNED TO ENCLOSE THE FLYWHEEL AND RELATED PARTS, CLUTCH, PLATES, RING GEAR AND THE LIKE ON THE END OF THE CYLINDER BLOCK. MAY BE FABRICATED FROM A SINGLE CASTING OR COMPOUND OF TWO SEPARATE CASTINGS AND MAY INCLUDE MOUNTING FACILITIES.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 2520016687987 does not contain precious metals.
This information was last updated on Jul 01, 2025.