National Stock Number
6680-01-663-1623
National Stock Number (NSN) 6680-01-663-1623, or NIIN 016631623, (speed sensor,turbine engine) was assigned April 28, 2017 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.
This NSN is unique to one weapons system.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 29, 2017, 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) 48891. [AN ITEM CONSISTING OF A TOOTHED WHEEL, MOUNTED ON A TURBINE ENGINE COMPRESSOR, ROTATING IN THE MAGNETIC FIELD PRODUCED BY THE MAGNET OF A SENSOR. WHEN THE TEETH PASS THE MAGNET, THE GAP CHANGES, HENCE THE MAGNETIC FIELD WHICH GENERATES AN ELECTRO-MOTIVE FORCE WITHIN THE SOLENOIDS THE ELECTRIC SIGNAL IS TRANSMITTED TO AN INDICATOR. THE ITEM IS SPECIFICALLY USED TO MEASURE THE ROTATION SPEED OF A TURBINE ENGINE SHAFT.]. This item is a Flight Safety Critical Aircraft Part (FSCAP). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6680016631623 contains gold.
This NSN is associated to Schedule B 8411997050: parts of gas turbine aircraft engines, other than for use in civil aircraft. The Schedule B End Use is listed as engines and turbines for military aircraft. NAICS classification category 336412: aircraft engine and engine parts manufacturing.
This information was last updated on May 01, 2025.