National Stock Number
6105-00-122-3978
National Stock Number (NSN) 6105-00-122-3978, or NIIN 001223978, (motor-tachometer generator) was assigned November 6, 1968 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. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. 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 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 6105001223978 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 Aug 01, 2025.