National Stock Number
6645-00-557-5844
National Stock Number (NSN) 6645-00-557-5844, or NIIN 005575844, (stopwatch) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 005575844 was cancelled on November 2, 2018, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN replaces 1 stock number, 6645007654321.
There are 3 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 one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 30, 2020, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 04786. [A TIMEPIECE DESIGNED EXCLUSIVELY TO INDICATE A TIME INTERVAL, WITH REFERENCE TO MEASUREMENT. IT MAY BE STARTED AND STOPPED AT ANY GIVEN INSTANT, AND CONTROLLED BY A START AND STOP MECHANISM. EXCLUDES:TIMER AS USED TO CONTROL, REGULATE, OR REGISTER A FIXED TIME INTERVAL WHICH HAS BEEN PREVIOUSLY DETERMINED.]. 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 6645005575844 does not contain precious metals.
This information was last updated on Aug 01, 2025.