National Stock Number
6105-00-446-2971
National Stock Number (NSN) 6105-00-446-2971, or NIIN 004462971, (motor-tachometer generator) 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 7 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 4 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Aug 29, 2016. There have been 10 contracts issued for this part number, with 10 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7M916V4177, SPE7M115VG937, SPE7M915V2421, SPE7M914V9330, SPE7M914V4659. The total value of the awarded contracts has been US$ 70,175.00.
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 Dec 28, 2013, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) 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) 28454. [AN ITEM WHICH IS AN ELECTRICAL ROTATING MACHINE COMBINING BOTH CONTROL MOTOR AND TACHOMETER GENERATOR ACTION. THE CONTROL MOTOR AND TACHOMETER GENERATOR MAY BE CONTAINED IN THE SAME OR SEPARATE HOUSINGS. IT IS DESIGNED FOR SERVO APPLICATION WHERE INSTANT RESPONSE TO INPUT SIGNAL IS ESSENTIAL. IT IS GENERALLY USED IN CIRCUITS WHERE THE OUTPUT POTENTIAL FROM THE TACHOMETER GENERATOR IS FED BACK TO PREVENT EXCESSIVE OSCILLATION AND FOR ASSURING HIGH STABILITY IN A SERVO LOOP. EXCLUDES:DYNAMOTOR; AND MOTOR-GENERATOR.]. 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 6105004462971 contains an unknown precious metal.
This NSN is associated to Schedule B 8412809000: 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.