National Stock Number
5845-01-668-4401
National Stock Number (NSN) 5845-01-668-4401, or NIIN 016684401, (transponder,sonar) was assigned November 22, 2017 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is 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) 46548. [AN ITEM DESIGNED TO BE DEPLOYED FROM A SHIP FOR TESTING THE ACCURACY OF SHIPBOARD OR AIRBORNE SONAR SYSTEMS. WHEN DEPOLYED IN THE WATER IT HANGS FROM A FLOTATION DEVICE (BUOY) WHICH IS EQUIPPED WITH A RADAR REFLECTOR. WHEN INTERROGARED BY A PULSE TRANSMITTED FROM A SHIPBOARD OR AIRBORNE SONAR, THE TRANSPONDER REPLIES WITH AN ACOUSTIC SIGNAL. SIMULTANEOUS RANGE AND AZIMUTH MEASUREMENTS MADE BY PRECISION FIRE CONTROL RADAR ABOARD THE INTERROGATING PLATFORM PROVIDE ACCURATE REFERENCES FOR COMPARISON WITH MEASUREMENTS TAKEN FROM THE INTERROGATING SONAR SYSTEM.]. 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 5845016684401 does not contain precious metals.
This NSN is associated to Schedule B 9014900000: parts & accessories for direction finding compasses and other navigational instruments and appliances. The Schedule B End Use is listed as marine engines, parts. NAICS classification category 334511: search, detection, navigation, guidance, aeronautical, and nautical system and instrument manufacturing.
This information was last updated on Aug 01, 2025.