National Stock Number
6620-00-663-7785
National Stock Number (NSN) 6620-00-663-7785, or NIIN 006637785, (indicator,electrical tachometer) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 006637785 was cancelled on December 25, 2002, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 6620008773266. 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 3 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are 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) 08260. [AN INSTRUMENT WHICH DISPLAYS, IN UNITS OF REVOLUTIONS PER MINUTE, THE TRANSMITTED ROTATIONAL SPEED OF A SHAFT FOR A SPECIFIED ELAPSED TIME.]. 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 6620006637785 does not contain precious metals.
This information was last updated on Aug 01, 2025.