National Stock Number
2990-00-373-5551
National Stock Number (NSN) 2990-00-373-5551, or NIIN 003735551, (control unit,governor) was assigned March 12, 1974 in the Federal Logistics Information System (FLIS). NIIN 003735551 was cancelled on August 24, 2011, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. 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 3 suppliers. Today, 3 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 5 years.
This NSN is assigned to Item Name Code (INC) 51544. [A NON-AIRCRAFT ELECTRONIC UNIT THAT WORKS IN CONJUNCTION WITH A GOVERNOR/ACTATOR THAT CONTINOUSLY MONITORS ENGINE SPEED, TEMPERATURE, AND AIR FLOW AND ADJUSTS THE FUEL CONTROL TO COMPENSATE FOR CHANGES. IT IS USED WITH DIESEL OR GAS ENGINES, OR STEAM OR GAS TUBINES. IT MAY INCLUDE LOAD SHARING CAPABILITIES, ROTOR SPEED GOVERNING, LOSS-OF-LOAD PROTECTION AND ANALOG OR MANUAL BACK-UP MODES. IT MAY CONTAIN AUTOMATIC START CAPABILITY OR SELF-DIAGNOSTIC CIRCUITRY.]. 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 2990003735551 does not contain precious metals.
This information was last updated on Aug 01, 2025.