National Stock Number
5845-00-642-6621
National Stock Number (NSN) 5845-00-642-6621, or NIIN 006426621, (hydrophone,sonar) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. 2 of those 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.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 00277. [A DEVICE SPECIFICALLY DESIGNED TO BE USED UNDERWATER TO CONVERT UNDERWATER SOUND ENERGY INTO ELECTRICAL ENERGY. FOR ITEMS DESIGNED TO CONVERT ELECTRICAL ENERGY INTO UNDERWATER SOUND ENERGY AND UNDERWATER SOUND ENERGY INTO ELECTRICAL ENERGY, SEE TRANSDUCER, SONAR. FOR ITEMS DESIGNED TO CONVERT ELECTRICAL ENERGY INTO UNDERWATER SOUND ENERGY ONLY, SEE PROJECTOR, SONAR.]. 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 5845006426621 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.