National Stock Number
3020-00-008-1689
National Stock Number (NSN) 3020-00-008-1689, or NIIN 000081689, (pulley,timing belt) was assigned July 12, 1972 in the Federal Logistics Information System (FLIS). NIIN 000081689 was cancelled on May 1, 2004, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There is only one manufacturer part number 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 assigned to Item Name Code (INC) 45487. [A PULLEY WITH REGULARLY SPACED GROOVES PARALLEL TO THE PULLEY AXIS ON THE FACE. IT IS DESIGNED TO BE USED FOR TIMING PURPOSES SUCH AS TO SYNCHRONIZE THE IGINTION SPARK WITH THE COMPLETION OF THE COMPRESSION STROKE OF THE PISTON.]. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 3020000081689 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.