National Stock Number
1680-01-355-0721
National Stock Number (NSN) 1680-01-355-0721, or NIIN 013550721, (gearbox assembly,aircraft) was assigned March 11, 1992 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 1680013158298.
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 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.
This part number has not been procured by the US Government in over a year. There have been 10 contracts issued for this part number, with 19 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPEHA620P0169, SPE4A519F09J4, SPE4A519F09J4, SPE4A519F09J4, SPE4A519F09J4. The total value of the awarded contracts has been US$ 9,504,262.14.
This NSN is somewhat common among different platforms, belonging to 4 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 Mar 26, 2016, 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) 48024. [AN ASSEMBLY OF GEARS, SHAFT AND BEARINGS WITHIN A HOUSING. IT MAY OR MAY NOT BE DESIGNED TO CHANGE DIRECTION OR ROTARY MOTION OR HAVE A TORQUE DIFFERENTIAL FROM INPUT OR OUTPUT. MAY INCLUDE A HYDRAULIC MOTOR, BRAKE AND THE LIKE. EXCLUDES:GEARBOXES THAT ARE TURBINE ENGINE DRIVEN.]. 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 1680013550721 does not contain precious metals.
This information was last updated on May 01, 2025.