National Stock Number
5805-00-420-9391
National Stock Number (NSN) 5805-00-420-9391, or NIIN 004209391, (switch,telephone,selector) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). 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, 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.
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 Jul 02, 2006, 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 requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 00736. [A DEVICE WITH SWITCHING FACILITIES DESIGNED TO MOVE OVER A NUMBER OF TERMINALS TO WHICH ARE CONNECTED GROUPS OF CIRCUITS IN ORDER TO SELECT A PARTICULAR GROUP OF CIRCUITS IN ACCORDANCE WITH SIGNALS RECEIVED OVER THE CIRCUIT ASSOCIATED WITH THIS SELECTOR AND THEN TO CHOOSE FROM THE GROUP AN IDLE CIRCUIT AND CONNECT TO IT THE CIRCUIT ASSOCIATED WITH THIS SELECTOR. SEE ALSO SWITCH, TELEPHONE, CROSSBAR.]. 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 5805004209391 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.