National Stock Number
6620-01-689-4252
National Stock Number (NSN) 6620-01-689-4252, or NIIN 016894252, (diagnostic unit,engine) was assigned June 19, 2020 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. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers 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) 52359. [AN ITEM THAT ACQUIRES MEASUREMENT DATA FROM THE ENGINE CONTROLS AND SENSORS, RECORDS ENGINE'S OPERATING TIMES AND CYLES, DETECTS CRITICAL ENGINE DATA AND STORES SELECTED EVENT PARAMETERS. IT MAY ALSO SERVE AS AN ENGINE INTERCONNECTING BOX WHICH DISTRIBUTES VARIOUS ELECTRICAL SIGNALS BETWEEN ENGINE COMPONENTS, ACCESSORIES, AND THE FRAME.]. 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 6620016894252 does not contain precious metals.
This NSN is associated to Schedule B 9031808080: other measuring or checking instruments, appliances and machines, nesoi in chapter 90. The Schedule B End Use is listed as measuring, testing, control instruments. NAICS classification category 334515: instrument manufacturing for measuring and testing electricity and electrical signals.
This information was last updated on Aug 01, 2025.