National Stock Number (NSN) 6620-01-521-9146, or NIIN 015219146, (diagnostic unit,engine) was assigned July 9, 2004 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 5 manufacturer part numbers associated with this NSN. 4 of those 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, only one supplier is deemed design controlled or valid supply parts.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 50 contracts issued for this part number, with 66 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4AX24F5265, SPE4AX24F5265, SPE4AX23F7247, SPE4AX23F7247, SPE4AX23F7247. The total value of the awarded contracts has been US$ 20,091,852.56.
This NSN is somewhat common among different platforms, belonging to 5 different weapons systems.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Feb 03, 2016, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.
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 is a Flight Safety Critical Aircraft Part (FSCAP). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6620015219146 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 Apr 01, 2025.