National Stock Number
3040-00-073-9128
National Stock Number (NSN) 3040-00-073-9128, or NIIN 000739128, (extension shaft) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier 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 5 years.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 29, 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. 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) 18437. [AN ITEM CONSISTING OF A LENGTH OF RIGID SHAFTING DESIGNED TO BE COUPLED TO THE SHAFT OF ITEMS SUCH AS VARIABLE CAPACITORS, SWITCHES, HAND CRANKS AND THE LIKE. IT IS SPECIFICALLY DESIGNED TO INCREASE THE LENGTH OF THE ORIGINAL SHAFT AND MAY ALSO EFFECT A CHANGE IN THE SHAFT DIAMETER. INCLUDES COUPLING(S) OR HAS PROCESSED END(S) TO FACILITATE THE ATTACHMENT OF A COUPLING DEVICE. MAY HAVE PROVISION FOR ELECTRICALLY INSULATING THE EXTENSION SHAFT FROM THE OTHER SHAFT.]. 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 3040000739128 contains an unknown precious metal.
This NSN is associated to Schedule B 8412909080: parts of engines and motors, nesoi. The Schedule B End Use is listed as industrial engines. NAICS classification category 333111: farm machinery and equipment manufacturing.
This information was last updated on Jul 01, 2025.