National Stock Number
6645-01-250-0478
National Stock Number (NSN) 6645-01-250-0478, or NIIN 012500478, (timer,sequential) was assigned February 24, 1987 in the Federal Logistics Information System (FLIS). NIIN 012500478 was cancelled on November 2, 2017, 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, there are no suppliers 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.
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 01, 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. This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 61237. [AN ITEM WHICH ACTUATES INCLUDED ELECTRICAL CONTACTS AND/OR SWITCHES IN AN ORDERLY SUCCESSION, AND AT A PREDETERMINED INTERVAL(S) FOR THE PURPOSE OF CONTROLLING THE OPERATION OF ANOTHER ELECTRICAL DEVICE(S). MAY HAVE PROVISION FOR MANUALLY ESTABLISHING AN OPERATIONAL SEQUENCE OR CYCLE. SEE ALSO RELAY, MOTOR DRIVEN; TIMER, INTERVAL; KEYER (AS MODIFIED); CHRONOMETER, MAKE-BREAK CIRCUIT AND INTERVALOMETER (AS MODIFIED).]. 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 6645012500478 does not contain precious metals.
This information was last updated on Jul 01, 2025.